Paternal Family Tree: Habsburg
Maternal Family Tree: Gersenda II Sabran Countess Provence 1180-1242
On 20th February 1631 [his father] Ferdinand III Holy Roman Emperor [aged 22] and [his mother] Maria Anna of Spain Holy Roman Empress [aged 24] were married. She by marriage Queen Consort Bohemia. She the daughter of [his grandfather] Philip III King Spain and [his grandmother] Margaret of Austria Queen Consort Spain. He the son of Ferdinand of Spain II Holy Roman Emperor [aged 52] and Maria Anna Wittelsbach Holy Roman Empress. They were first cousins.
On 8th September 1633 Ferdinand IV King of the Romans was born to Ferdinand III Holy Roman Emperor [aged 25] and Maria Anna of Spain Holy Roman Empress [aged 27] at Vienna [Map]. Coefficient of inbreeding 15.19%.
1635. Frans Luycx [aged 30]. Portrait of Ferdinand IV King of the Romans [aged 1].
On 18th November 1637 [his father] Ferdinand III Holy Roman Emperor [aged 29] succeeded III Holy Roman Emperor. [his mother] Maria Anna of Spain Holy Roman Empress [aged 31] by marriage Holy Roman Empress.
In 1646 Ferdinand IV King of the Romans [aged 12] succeeded King Bohemia.
On 13th May 1646 [his sister] Maria Habsburg Spain Archduchess Austria was born to [his father] Ferdinand III Holy Roman Emperor [aged 37] and [his mother] Maria Anna of Spain Holy Roman Empress [aged 39]. Maria Anna of Spain Holy Roman Empress died in childbirth. Coefficient of inbreeding 15.19%.
On 2nd July 1648 [his father] Ferdinand III Holy Roman Emperor [aged 39] and [his step-mother] Maria Leopoldine Habsburg Spain Queen Consort Bohemia [aged 16] were married at Linz. She by marriage Queen Consort Bohemia. The difference in their ages was 23 years. He the son of [his grandfather] Ferdinand of Spain II Holy Roman Emperor and [his grandmother] Maria Anna Wittelsbach Holy Roman Empress. They were first cousins.
In 1649 [his brother-in-law] Philip IV King Spain [aged 43] and [his sister] Mariana of Austria Queen Consort Spain [aged 14] were married. She by marriage Queen Consort Spain. The difference in their ages was 29 years. She the daughter of [his father] Ferdinand III Holy Roman Emperor [aged 40] and [his mother] Maria Anna of Spain Holy Roman Empress. He the son of [his grandfather] Philip III King Spain and [his grandmother] Margaret of Austria Queen Consort Spain. They were uncle and niece.
On 30th April 1651 [his father] Ferdinand III Holy Roman Emperor [aged 42] and [his step-mother] Eleonora Gonzaga Queen Consort Bohemia [aged 21] were married. She by marriage Queen Consort Bohemia. The difference in their ages was 21 years. She the daughter of Charles Gonzaga Duke Nevers Duke Rethel and Maria Gonzaga Duchess of Montferrat [aged 41]. He the son of [his grandfather] Ferdinand of Spain II Holy Roman Emperor and [his grandmother] Maria Anna Wittelsbach Holy Roman Empress. They were second cousin twice removed.
Chronicle of a Bourgeois of Valenciennes
Récits d’un bourgeois de Valenciennes aka The Chronicle of a Bourgeois of Valenciennes is a vivid 14th-century vernacular chronicle written by an anonymous urban chronicler from Valenciennes in the County of Hainaut. It survives in a manuscript that describes local and regional history from about 1253 to 1366, blending chronology, narrative episodes, and eyewitness-style accounts of political, military, and social events in medieval France, Flanders, and the Low Countries. The work begins with a chronological framework of events affecting Valenciennes and its region under rulers such as King Philip VI of France and the shifting allegiances of local nobility. It includes accounts of conflicts, sieges, diplomatic manoeuvres, and the impact of broader struggles like the Hundred Years’ War on urban life in Hainaut. Written from the perspective of a burgher (bourgeois) rather than a monastery or royal court, the chronicle offers a rare lay viewpoint on high politics and warfare, reflecting how merchants, townspeople, and civic institutions experienced the turbulence of the 13th and 14th centuries. Its narrative style combines straightforward reporting of events with moral and civic observations, making it a valuable source for readers interested in medieval urban society, regional politics, and the lived experience of war and governance in pre-modern Europe.
Available at Amazon in eBook and Paperback format.
On 31st May 1653 Ferdinand IV King of the Romans [aged 19] succeeded IV King Romans.
On 9th July 1654 Ferdinand IV King of the Romans [aged 20] died.
Kings Wessex: Great x 18 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 16 Grand Son of Owain "Great" King Gwynedd
Kings Seisyllwg: Great x 22 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 17 Grand Son of Maredudd ap Bleddyn King Powys
Kings Godwinson: Great x 17 Grand Son of King Harold II of England
Kings England: Great x 8 Grand Son of King Edward III of England
Kings Scotland: Great x 16 Grand Son of King Malcolm III of Scotland
Kings France: Great x 8 Grand Son of King John "The Good" II of France
Kings Duke Aquitaine: Great x 22 Grand Son of Ranulf I Duke Aquitaine
Kings Spain: Son of Maria Anna of Spain Holy Roman Empress
Great x 4 Grandfather: Maximilian Habsburg I Holy Roman Emperor 3 x Great Grandson of King Edward III of England
Great x 3 Grandfather: Philip "Handsome Fair" King Castile 4 x Great Grandson of King Edward III of England
Great x 4 Grandmother: Mary Valois Duchess Burgundy 
3 x Great Granddaughter of King John "The Good" II of France
Great x 2 Grandfather: Ferdinand I Holy Roman Emperor Great Grandson of John II King Aragon
Great x 4 Grandfather: Ferdinand II King Aragon 
son of John II King Aragon
Great x 3 Grandmother: Joanna "The Mad" Trastámara Queen Castile Granddaughter of John II King Aragon
Great x 4 Grandmother: Isabella Queen Castile 2 x Great Granddaughter of King Edward III of England
Great x 1 Grandfather: Charles Habsburg Spain II Archduke Austria 2 x Great Grandson of John II King Aragon
Great x 4 Grandfather: Casimir IV King Poland
Great x 3 Grandfather: Vladislaus II King Hungary 6 x Great Grandson of King Philip III of France
Great x 4 Grandmother: Elisabeth Habsburg Queen Consort Poland 5 x Great Granddaughter of King Philip III of France
Great x 2 Grandmother: Anne Jagiellon 2 x Great Granddaughter of John II King Aragon
Great x 4 Grandfather: Gaston de Foix 2nd Earl Kendal 6 x Great Grandson of King John "The Good" II of France
Great x 3 Grandmother: Anna Foix Queen Consort of Hungary and Bohemia Great Granddaughter of John II King Aragon
Great x 4 Grandmother: Catherine of Foix Countess Kendal Granddaughter of John II King Aragon
Grandfather: Ferdinand of Spain II Holy Roman Emperor 3 x Great Grandson of John II King Aragon
Great x 4 Grandfather: Albert Wittelsbach IV Duke Bavaria 
6 x Great Grandson of King Louis VIII of France
Great x 3 Grandfather: William Wittelsbach IV Duke Bavaria 4 x Great Grandson of King Edward III of England
Great x 4 Grandmother: Kunigunde Habsburg Duchess Bavaria 3 x Great Granddaughter of King Edward III of England
Great x 2 Grandfather: Albert V Wittelsbach V Duke Bavaria 5 x Great Grandson of King Edward III of England
Great x 4 Grandfather: Philip Baden 1st Margrave Baden 7 x Great Grandson of King Philip III of France
Great x 3 Grandmother: Marie Jakobaea Baden Duchess Bavaria 4 x Great Granddaughter of King John "The Good" II of France
Great x 4 Grandmother: Elisabeth of the Palatinate 3 x Great Granddaughter of King John "The Good" II of France
Great x 1 Grandmother: Maria Anna Wittelsbach 3 x Great Granddaughter of John II King Aragon
Great x 4 Grandfather: Philip "Handsome Fair" King Castile 4 x Great Grandson of King Edward III of England
Great x 3 Grandfather: Ferdinand I Holy Roman Emperor Great Grandson of John II King Aragon
Great x 4 Grandmother: Joanna "The Mad" Trastámara Queen Castile Granddaughter of John II King Aragon
Great x 2 Grandmother: Anna Habsburg Spain Duchess Bavaria 2 x Great Granddaughter of John II King Aragon
Great x 4 Grandfather: Vladislaus II King Hungary 6 x Great Grandson of King Philip III of France
Great x 3 Grandmother: Anne Jagiellon 2 x Great Granddaughter of John II King Aragon
Great x 4 Grandmother: Anna Foix Queen Consort of Hungary and Bohemia Great Granddaughter of John II King Aragon
father: Ferdinand III Holy Roman Emperor son of Ferdinand of Spain II Holy Roman Emperor
Great x 4 Grandfather: Albert Wittelsbach IV Duke Bavaria 6 x Great Grandson of King Louis VIII of France
Great x 3 Grandfather: William Wittelsbach IV Duke Bavaria 4 x Great Grandson of King Edward III of England
Great x 4 Grandmother: Kunigunde Habsburg Duchess Bavaria 3 x Great Granddaughter of King Edward III of England
Great x 2 Grandfather: Albert V Wittelsbach V Duke Bavaria 5 x Great Grandson of King Edward III of England
Great x 4 Grandfather: Philip Baden 1st Margrave Baden 7 x Great Grandson of King Philip III of France
Great x 3 Grandmother: Marie Jakobaea Baden Duchess Bavaria 4 x Great Granddaughter of King John "The Good" II of France
Great x 4 Grandmother: Elisabeth of the Palatinate 3 x Great Granddaughter of King John "The Good" II of France
Great x 1 Grandfather: William Wittelsbach V Duke Bavaria 3 x Great Grandson of John II King Aragon
Great x 4 Grandfather: Philip "Handsome Fair" King Castile 4 x Great Grandson of King Edward III of England
Great x 3 Grandfather: Ferdinand I Holy Roman Emperor Great Grandson of John II King Aragon
Great x 4 Grandmother: Joanna "The Mad" Trastámara Queen Castile Granddaughter of John II King Aragon
Great x 2 Grandmother: Anna Habsburg Spain Duchess Bavaria 2 x Great Granddaughter of John II King Aragon
Great x 4 Grandfather: Vladislaus II King Hungary 6 x Great Grandson of King Philip III of France
Great x 3 Grandmother: Anne Jagiellon 2 x Great Granddaughter of John II King Aragon
Great x 4 Grandmother: Anna Foix Queen Consort of Hungary and Bohemia Great Granddaughter of John II King Aragon
Grandmother: Maria Anna Wittelsbach Holy Roman Empress 4 x Great Granddaughter of John II King Aragon
Great x 4 Grandfather: René Lorraine II Duke Lorraine Duke of Bar 3 x Great Grandson of King John "The Good" II of France
Great x 3 Grandfather: Antoine Lorraine II Duke Lorraine 4 x Great Grandson of King John "The Good" II of France
Great x 4 Grandmother: Philippa Egmont Duchess of Bar Duchess Lorraine 3 x Great Granddaughter of King John "The Good" II of France
Great x 2 Grandfather: Francis Lorraine I Duke Lorraine 4 x Great Grandson of King John "The Good" II of France
Great x 4 Grandfather: Gilbert Bourbon Count of Monpensier 2 x Great Grandson of King John "The Good" II of France
Great x 3 Grandmother: Renée Bourbon Duchess Lorraine 3 x Great Granddaughter of King John "The Good" II of France
Great x 4 Grandmother: Clara Gonzaga 7 x Great Granddaughter of King Louis VIII of France
Great x 1 Grandmother: Renata Lorraine Duchess Bavaria 3 x Great Granddaughter of John II King Aragon
Great x 4 Grandfather: John King of Denmark Norway and Sweden 
Great x 3 Grandfather: Christian II King of Denmark II King Norway 8 x Great Grandson of King Louis VIII of France
Great x 4 Grandmother: Christina Queen Consort Denmark Norway and Sweden 7 x Great Granddaughter of King Louis VIII of France
Great x 2 Grandmother: Christina Oldenburg Duchess Lorraine 2 x Great Granddaughter of John II King Aragon
Great x 4 Grandfather: Philip "Handsome Fair" King Castile 4 x Great Grandson of King Edward III of England
Great x 3 Grandmother: Isabella of Austria Queen Consort Denmark and Norway Great Granddaughter of John II King Aragon
Great x 4 Grandmother: Joanna "The Mad" Trastámara Queen Castile Granddaughter of John II King Aragon
Ferdinand IV King of the Romans son of Maria Anna of Spain Holy Roman Empress
Great x 4 Grandfather: Maximilian Habsburg I Holy Roman Emperor 3 x Great Grandson of King Edward III of England
Great x 3 Grandfather: Philip "Handsome Fair" King Castile 4 x Great Grandson of King Edward III of England
Great x 4 Grandmother: Mary Valois Duchess Burgundy 3 x Great Granddaughter of King John "The Good" II of France
Great x 2 Grandfather: Charles V Holy Roman Emperor -2 x Great Grandson of Charles V Holy Roman Emperor
Great x 4 Grandfather: Ferdinand II King Aragon son of John II King Aragon
Great x 3 Grandmother: Joanna "The Mad" Trastámara Queen Castile Granddaughter of John II King Aragon
Great x 4 Grandmother: Isabella Queen Castile 2 x Great Granddaughter of King Edward III of England
Great x 1 Grandfather: Philip "The Prudent" II King Spain son of Charles V Holy Roman Emperor
Great x 4 Grandfather: Ferdinand Aviz 2nd Duke Viseu 
2 x Great Grandson of King Edward III of England
Great x 3 Grandfather: Manuel "Fortunate" I King Portugal 3 x Great Grandson of King Edward III of England
Great x 4 Grandmother: Beatrice Aviz Duchess Viseu 2 x Great Granddaughter of King Edward III of England
Great x 2 Grandmother: Isabel Aviz Queen Consort Spain Great Granddaughter of John II King Aragon
Great x 4 Grandfather: Ferdinand II King Aragon son of John II King Aragon
Great x 3 Grandmother: Maria Trastámara Queen Consort Portugal Granddaughter of John II King Aragon
Great x 4 Grandmother: Isabella Queen Castile 2 x Great Granddaughter of King Edward III of England
Grandfather: Philip III King Spain son of Philip "The Prudent" II King Spain
Great x 4 Grandfather: Philip "Handsome Fair" King Castile 4 x Great Grandson of King Edward III of England
Great x 3 Grandfather: Ferdinand I Holy Roman Emperor Great Grandson of John II King Aragon
Great x 4 Grandmother: Joanna "The Mad" Trastámara Queen Castile Granddaughter of John II King Aragon
Great x 2 Grandfather: Maximilian Habsburg Spain II Holy Roman Emperor 2 x Great Grandson of John II King Aragon
Great x 4 Grandfather: Vladislaus II King Hungary 6 x Great Grandson of King Philip III of France
Great x 3 Grandmother: Anne Jagiellon 2 x Great Granddaughter of John II King Aragon
Great x 4 Grandmother: Anna Foix Queen Consort of Hungary and Bohemia Great Granddaughter of John II King Aragon
Great x 1 Grandmother: Anna of Austria Queen Consort Spain daughter of Maximilian Habsburg Spain II Holy Roman Emperor
Great x 4 Grandfather: Philip "Handsome Fair" King Castile 4 x Great Grandson of King Edward III of England
Great x 3 Grandfather: Charles V Holy Roman Emperor -2 x Great Grandson of Charles V Holy Roman Emperor
Great x 4 Grandmother: Joanna "The Mad" Trastámara Queen Castile Granddaughter of John II King Aragon
Great x 2 Grandmother: Maria of Spain Holy Roman Empress daughter of Charles V Holy Roman Emperor
Great x 4 Grandfather: Manuel "Fortunate" I King Portugal 3 x Great Grandson of King Edward III of England
Great x 3 Grandmother: Isabel Aviz Queen Consort Spain Great Granddaughter of John II King Aragon
Great x 4 Grandmother: Maria Trastámara Queen Consort Portugal Granddaughter of John II King Aragon
mother: Maria Anna of Spain Holy Roman Empress daughter of Philip III King Spain
Great x 4 Grandfather: Maximilian Habsburg I Holy Roman Emperor 3 x Great Grandson of King Edward III of England
Great x 3 Grandfather: Philip "Handsome Fair" King Castile 4 x Great Grandson of King Edward III of England
Great x 4 Grandmother: Mary Valois Duchess Burgundy 3 x Great Granddaughter of King John "The Good" II of France
Great x 2 Grandfather: Ferdinand I Holy Roman Emperor Great Grandson of John II King Aragon
Great x 4 Grandfather: Ferdinand II King Aragon son of John II King Aragon
Great x 3 Grandmother: Joanna "The Mad" Trastámara Queen Castile Granddaughter of John II King Aragon
Great x 4 Grandmother: Isabella Queen Castile 2 x Great Granddaughter of King Edward III of England
Great x 1 Grandfather: Charles Habsburg Spain II Archduke Austria 2 x Great Grandson of John II King Aragon
Great x 4 Grandfather: Casimir IV King Poland
Great x 3 Grandfather: Vladislaus II King Hungary 6 x Great Grandson of King Philip III of France
Great x 4 Grandmother: Elisabeth Habsburg Queen Consort Poland 5 x Great Granddaughter of King Philip III of France
Great x 2 Grandmother: Anne Jagiellon 2 x Great Granddaughter of John II King Aragon
Great x 4 Grandfather: Gaston de Foix 2nd Earl Kendal 6 x Great Grandson of King John "The Good" II of France
Great x 3 Grandmother: Anna Foix Queen Consort of Hungary and Bohemia Great Granddaughter of John II King Aragon
Great x 4 Grandmother: Catherine of Foix Countess Kendal Granddaughter of John II King Aragon
Grandmother: Margaret of Austria Queen Consort Spain 3 x Great Granddaughter of John II King Aragon
Great x 4 Grandfather: Albert Wittelsbach IV Duke Bavaria 6 x Great Grandson of King Louis VIII of France
Great x 3 Grandfather: William Wittelsbach IV Duke Bavaria 4 x Great Grandson of King Edward III of England
Great x 4 Grandmother: Kunigunde Habsburg Duchess Bavaria 3 x Great Granddaughter of King Edward III of England
Great x 2 Grandfather: Albert V Wittelsbach V Duke Bavaria 5 x Great Grandson of King Edward III of England
Great x 4 Grandfather: Philip Baden 1st Margrave Baden 7 x Great Grandson of King Philip III of France
Great x 3 Grandmother: Marie Jakobaea Baden Duchess Bavaria 4 x Great Granddaughter of King John "The Good" II of France
Great x 4 Grandmother: Elisabeth of the Palatinate 3 x Great Granddaughter of King John "The Good" II of France
Great x 1 Grandmother: Maria Anna Wittelsbach 3 x Great Granddaughter of John II King Aragon
Great x 4 Grandfather: Philip "Handsome Fair" King Castile 4 x Great Grandson of King Edward III of England
Great x 3 Grandfather: Ferdinand I Holy Roman Emperor Great Grandson of John II King Aragon
Great x 4 Grandmother: Joanna "The Mad" Trastámara Queen Castile Granddaughter of John II King Aragon
Great x 2 Grandmother: Anna Habsburg Spain Duchess Bavaria 2 x Great Granddaughter of John II King Aragon
Great x 4 Grandfather: Vladislaus II King Hungary 6 x Great Grandson of King Philip III of France
Great x 3 Grandmother: Anne Jagiellon 2 x Great Granddaughter of John II King Aragon
Great x 4 Grandmother: Anna Foix Queen Consort of Hungary and Bohemia Great Granddaughter of John II King Aragon