Paternal Family Tree: Habsburg
Maternal Family Tree: Gersenda II Sabran Countess Provence 1180-1242
Balthasar Charles Habsburg Spain Prince Asturias was created Prince Asturias.
In 1610 [his father] Philip IV King Spain [aged 4] and [his mother] Elisabeth Bourbon Queen Consort Spain [aged 7] were married. She by marriage Queen Consort Spain. She the daughter of [his grandfather] Henry IV King France [aged 56] and [his grandmother] Marie de Medici Queen Consort France [aged 34]. He the son of Philip III King Spain [aged 31] and Margaret of Austria Queen Consort Spain [aged 25]. They were second cousins.
On 17th October 1629 Balthasar Charles Habsburg Spain Prince Asturias was born to Philip IV King Spain [aged 24] and Elisabeth Bourbon Queen Consort Spain [aged 26]. Coefficient of inbreeding 4.39%.
On 12th March 1634 [his brother] Francis Ferdinand Habsburg Spain died.
On 5th December 1636 [his sister] Maria Anna "Mariana" Habsburg Spain died.
On 6th October 1644 [his mother] Elisabeth Bourbon Queen Consort Spain [aged 41] died.
On 9th October 1646 Balthasar Charles Habsburg Spain Prince Asturias [aged 16] died.
In 1649 [his father] Philip IV King Spain [aged 43] and [his step-mother] 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 Ferdinand III Holy Roman Emperor [aged 40] and [his aunt] 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.
Kings Wessex: Great x 17 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 16 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 15 Grand Son of King Malcolm III of Scotland
Kings France: Grand Son of Henry IV King France
Kings Duke Aquitaine: Great x 21 Grand Son of Ranulf I Duke Aquitaine
Kings Spain: Son of Philip IV 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: 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
father: Philip IV King Spain son 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
Balthasar Charles Habsburg Spain Prince Asturias son of Philip IV King Spain
Great x 4 Grandfather: John Bourbon VIII Count Vendôme 4 x Great Grandson of King Louis IX of France
Great x 3 Grandfather: Francis Bourbon Count Vendôme and Soissons 5 x Great Grandson of King Louis IX of France
Great x 4 Grandmother: Isabelle Beauvau Countess Vendôme
Great x 2 Grandfather: Charles Bourbon Duke Vendôme 4 x Great Grandson of King John "The Good" II of France
Great x 4 Grandfather: Peter Luxemburg II Count Saint Pol and Soissons 
3 x Great Grandson of King Edward III of England
Great x 3 Grandmother: Marie Luxemburg Countess Vendôme and Soissons 3 x Great Granddaughter of King John "The Good" II of France
Great x 4 Grandmother: Margaret Savoy Countess Saint Pol 2 x Great Granddaughter of King John "The Good" II of France
Great x 1 Grandfather: Antoine King Navarre 5 x Great Grandson of King John "The Good" II of France
Great x 4 Grandfather: John Valois II Duke Alençon 2 x Great Grandson of King John "The Good" II of France
Great x 3 Grandfather: Rene Valois Duke Alençon 3 x Great Grandson of King John "The Good" II of France
Great x 4 Grandmother: Marie Armagnac Duchess Alençon 2 x Great Granddaughter of King John "The Good" II of France
Great x 2 Grandmother: Françoise Valois Countess Vendôme 4 x Great Granddaughter of King John "The Good" II of France
Great x 4 Grandfather: Frederick Lorraine Count Vaudémont 5 x Great Grandson of King Philip III of France
Great x 3 Grandmother: Margaret Lorraine Duchess Alençon 3 x Great Granddaughter of King John "The Good" II of France
Great x 4 Grandmother: Yolande Valois Anjou 2 x Great Granddaughter of King John "The Good" II of France
Grandfather: Henry IV King France 3 x Great Grandson of Charles "Victorious" VII King France
Great x 4 Grandfather: Alain "Great" Albret 3 x Great Grandson of King John "The Good" II of France
Great x 3 Grandfather: Jean III King Navarre 4 x Great Grandson of King John "The Good" II of France
Great x 4 Grandmother: Francois Chatillon 4 x Great Granddaughter of King Philip III of France
Great x 2 Grandfather: King Henry II of Navarre Great Grandson of Charles "Victorious" VII King France
Great x 4 Grandfather: Gaston V Count Foix Grandson of John II King Aragon
Great x 3 Grandmother: Catherine Grailly I Queen Navarre Granddaughter of Charles "Victorious" VII King France
Great x 4 Grandmother: Magdalena Valois Countess Foix daughter of Charles "Victorious" VII King France
Great x 1 Grandmother: Jeanne Albret III Queen Navarre 2 x Great Granddaughter of Charles "Victorious" VII King France
Great x 4 Grandfather: John Valois Orléans Grandson of King Charles V of France
Great x 3 Grandfather: Charles Valois Orléans Count Angoulême Great Grandson of King Charles V of France
Great x 4 Grandmother: Marguerite Rohan
Great x 2 Grandmother: Marguerite Valois Orléans Queen Consort Navarre 2 x Great Granddaughter of King Charles V of France
Great x 4 Grandfather: Philip "Landless" Savoy II Duke Savoy 2 x Great Grandson of King John "The Good" II of France
Great x 3 Grandmother: Louise of Savoy Countess Angoulême 3 x Great Granddaughter of King John "The Good" II of France
Great x 4 Grandmother: Margaret Bourbon 2 x Great Granddaughter of King John "The Good" II of France
mother: Elisabeth Bourbon Queen Consort Spain daughter of Henry IV King France
Great x 4 Grandfather: Giovanni de' Medici
Great x 3 Grandfather: Lodovico de Medici aka Giovanni delle Bande Nere
Great x 2 Grandfather: Cosimo I de Medici Grand Duke of Tuscany
Great x 1 Grandfather: Francesco I de Medici Grand Duke of Tuscany
Grandmother: Marie de Medici Queen Consort France 3 x Great Granddaughter of John II King Aragon
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 Grandmother: Joanna of Austria Grand Duchess Tuscany 2 x Great Granddaughter 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