Maternal Family Tree: Etienette Countess Provence and Arles
Before 1208 [her father] Simon Dammartin [aged 27] and [her mother] Marie Montgomery Countess Ponthieu [aged 8] were married. She the daughter of [her grandfather] William Montgomery IV Count Ponthieu [aged 28] and [her grandmother] Alys Capet Countess Ponthieu [aged 47].
On 30th November 1219 [her future husband] Ferdinand III King Castile III King Leon [aged 20] and Elisabeth Hohenstaufen Queen Consort Castile Queen Consort Leon [aged 14] were married in Burgos [Map]. She by marriage Queen Consort Castile, Queen Consort Leon. She the daughter of Philip King Germany. He the son of Alfonso IX King Leon [aged 48] and [her future mother-in-law] Berengaria Ivrea I Queen Castile [aged 40]. They were fourth cousins. He a great grandson of King Henry "Curtmantle" II of England.
Around 1220 Joan Dammartin Queen Consort Castile and Leon was born to Simon Dammartin [aged 40] and Marie Montgomery Countess Ponthieu [aged 20].
On 4th October 1221 [her grandfather] William Montgomery IV Count Ponthieu [aged 42] died. His daughter [her mother] Marie [aged 22] succeeded Countess Ponthieu.
On 24th September 1230 Alfonso IX King Leon [aged 59] died. His son [her future husband] Ferdinand [aged 31] succeeded III King Leon.
In October 1237 Ferdinand III King Castile III King Leon [aged 38] and Joan Dammartin Queen Consort Castile and Leon [aged 17] were married in Burgos [Map]. She by marriage Queen Consort Castile, Queen Consort Leon. The difference in their ages was 21 years. She the daughter of Simon Dammartin [aged 57] and Marie Montgomery Countess Ponthieu [aged 38]. He the son of Alfonso IX King Leon and Berengaria Ivrea I Queen Castile [aged 58]. They were second cousin once removed. He a great grandson of King Henry "Curtmantle" II of England.
In 1239 [her son] Ferdinand of Ponthieu was born to [her husband] Ferdinand III King Castile III King Leon [aged 40] and Joan Dammartin Queen Consort Castile and Leon [aged 19]. He a great x 2 grandson of King Henry "Curtmantle" II of England. He married before 1260 his half fourth cousin once removed Laure Montfort, daughter of Amaury Montfort and Beatrix Viennois, and had issue.
On 21st September 1239 [her father] Simon Dammartin [aged 59] died.
In 1241 [her daughter] Eleanor of Castile Queen Consort England was born to [her husband] Ferdinand III King Castile III King Leon [aged 42] and Joan Dammartin Queen Consort Castile and Leon [aged 21] at Burgos [Map]. She a great x 2 granddaughter of King Henry "Curtmantle" II of England. She married 1st November 1254 her second cousin once removed King Edward I of England, son of King Henry III of England and Eleanor of Provence Queen Consort England, and had issue.
Before 1243 [her sister-in-law] Sancha Ivrea Queen Consort Castile [aged 51] died.
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In 1243 [her son] Louis Ivrea was born to [her husband] Ferdinand III King Castile III King Leon [aged 44] and Joan Dammartin Queen Consort Castile and Leon [aged 23]. He a great x 2 grandson of King Henry "Curtmantle" II of England.
In 1243 [her step-son] Ferdinand Ivrea [aged 18] died.
In 1244 [her son] Simon Ivrea was born to [her husband] Ferdinand III King Castile III King Leon [aged 45] and Joan Dammartin Queen Consort Castile and Leon [aged 24]. He a great x 2 grandson of King Henry "Curtmantle" II of England.
In 1245 [her son] John Ivrea was born to [her husband] Ferdinand III King Castile III King Leon [aged 46] and Joan Dammartin Queen Consort Castile and Leon [aged 25]. He a great x 2 grandson of King Henry "Curtmantle" II of England.
In 1249 [her step-son] Alfonso X King Castile X King Leon [aged 27] and Violante Barcelona Queen Consort Castile Queen Consort Leon were married. She the daughter of James I King Aragon [aged 40] and Violant Árpád Queen Consort Aragon [aged 34]. He the son of [her husband] Ferdinand III King Castile III King Leon [aged 50] and Elisabeth Hohenstaufen Queen Consort Castile Queen Consort Leon. They were half third cousins. He a great x 2 grandson of King Henry "Curtmantle" II of England.
Before 1250 [her brother-in-law] Raoul Coucy II Lord Coucy and [her sister] Philippe Dammartin Countess Eu were married. She the daughter of [her father] Simon Dammartin and [her mother] Marie Montgomery Countess Ponthieu [aged 50]. They were third cousins.
On 21st September 1250 [her mother] Marie Montgomery Countess Ponthieu [aged 51] died.
On 21st September 1250 Joan Dammartin Queen Consort Castile and Leon [aged 30] succeeded Countess Ponthieu.
On 30th May 1252 [her husband] Ferdinand III King Castile III King Leon [aged 53] died. His son [her step-son] Alfonso [aged 30] succeeded X King Castile, X King Leon. Violante Barcelona Queen Consort Castile Queen Consort Leon by marriage Queen Consort Castile, Queen Consort Leon.
In 1253 [her brother-in-law] Otto II Count Guelders [aged 38] and [her sister] Philippe Dammartin Countess Eu were married. She by marriage Countess Guelders. She the daughter of [her father] Simon Dammartin and [her mother] Marie Montgomery Countess Ponthieu. He the son of Gerard III Count Guelders and Margaret Reginar Countess Guelders. They were half fifth cousins. He a great x 2 grandson of King Stephen I England.
On 1st November 1254 [her son-in-law] King Edward I of England [aged 15] and Eleanor of Castile Queen Consort England [aged 13] were married at Abbey of Santa Maria la Real de Huelgas [Map]. She the daughter of Ferdinand III King Castile III King Leon and Joan Dammartin Queen Consort Castile and Leon [aged 34]. He the son of King Henry III of England [aged 47] and Eleanor of Provence Queen Consort England [aged 31]. They were second cousin once removed. She a great x 2 granddaughter of King Henry "Curtmantle" II of England.
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Before 1260 Ferdinand of Ponthieu [aged 20] and Laure Montfort [aged 32] were married. She the daughter of Amaury Montfort and Beatrix Viennois. He the son of Ferdinand III King Castile III King Leon and Joan Dammartin Queen Consort Castile and Leon [aged 39]. They were half fourth cousin once removed. He a great x 2 grandson of King Henry "Curtmantle" II of England. She a great x 3 granddaughter of King Henry I "Beauclerc" England.
In 1260 [her son] Ferdinand of Ponthieu [aged 21] died.
In 1269 [her son] Louis Ivrea [aged 26] died.
On 16th March 1279 Joan Dammartin Queen Consort Castile and Leon [aged 59] died.
Kings Wessex: Great x 10 Grand Daughter of King Alfred "The Great" of Wessex
Kings France: Great x 6 Grand Daughter of Hugh I King of the Franks
Kings Duke Aquitaine: Great x 10 Grand Daughter of Ranulf I Duke Aquitaine
Kings Spain: Great x 2 Grand Daughter of Alfonso VII King Castile VII King Leon
Grandfather: Alberic Dammartin
father: Simon Dammartin 10 x Great Grandson of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 2 Grandfather: Hugh Clermont Count of Clermont-en-Beauvaisis
Great x 1 Grandfather: Renaud II Count of Clermont-en-Beauvaisis
Grandmother: Mathilde Clermont 9 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: Herbert Vermandois III Count Vermandois 5 x Great Grandson of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 3 Grandfather: Otto Vermandois I Count Vermandois 6 x Great Grandson of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandmother: Ermengard of Bar Countess Vermandois
Great x 2 Grandfather: Herbert Vermandois IV Count Vermandois 7 x Great Grandson of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 3 Grandmother: Pavia Countess Vermandois
Great x 1 Grandmother: Adelaide I Countess Vermandois 8 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: Ralph III Count of Valois 
Great x 3 Grandfather: Ralph IV Count of Valois
Great x 2 Grandmother: Adela Valois Countess Blois and Vermandois
Joan Dammartin Queen Consort Castile and Leon 2 x Great Granddaughter of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: Robert II Belleme 2nd Count Ponthieu 3rd Earl of Shrewsbury
Great x 3 Grandfather: William "Talvas" Montgomery III Count Ponthieu 4 x Great Grandson of Hugh I King of the Franks
Great x 4 Grandmother: Agnes Ponthieu Countess Ponthieu and Shrewsbury 
3 x Great Granddaughter of Hugh I King of the Franks
Great x 2 Grandfather: Guy Montgomery II Count Ponthieu 4 x Great Grandson of Hugh I King of the Franks
Great x 4 Grandfather: Odo "Red" I Duke Burgundy 
2 x Great Grandson of Hugh I King of the Franks
Great x 3 Grandmother: Helie Burgundy Countess Ponthieu 3 x Great Granddaughter of Hugh I King of the Franks
Great x 4 Grandmother: Sybilla Ivrea Duchess Burgundy 
9 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 1 Grandfather: John Montgomery I Count Ponthieu 5 x Great Grandson of Hugh I King of the Franks
Great x 2 Grandmother: Ida Countess Ponthieu
Grandfather: William Montgomery IV Count Ponthieu 6 x Great Grandson of Hugh I King of the Franks
Great x 1 Grandmother: Beatrice St Pol Countess Ponthieu
mother: Marie Montgomery Countess Ponthieu Great Granddaughter of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: Henry I King of the Franks Grandson of Hugh I King of the Franks
Great x 3 Grandfather: Philip I King of the Franks Great Grandson of Hugh I King of the Franks
Great x 4 Grandmother: Anne of Kiev Queen Consort Francia
Great x 2 Grandfather: Louis VI King of the Franks 2 x Great Grandson of Hugh I King of the Franks
Great x 4 Grandfather: Floris Gerulfing I Count Holland 
4 x Great Grandson of King Alfred "The Great" of Wessex
Great x 3 Grandmother: Bertha Gerulfing Queen Consort France 5 x Great Granddaughter of King Alfred "The Great" of Wessex
Great x 4 Grandmother: Gertrude Billung Countess Holland
Great x 1 Grandfather: Louis VII King of the Franks 3 x Great Grandson of Hugh I King of the Franks
Great x 4 Grandfather: Amadeus Savoy II Count Savoy
Great x 3 Grandfather: Humbert "Fat" Savoy II Count Savoy
Great x 2 Grandmother: Adelaide Savoy Queen Consort France 10 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: William I Count Burgundy 8 x Great Grandson of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 3 Grandmother: Gisela Ivrea Countess Savoy 9 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandmother: Ettiennette Countess Burgundy
Grandmother: Alys Capet Countess Ponthieu Granddaughter of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: William I Count Burgundy 8 x Great Grandson of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 3 Grandfather: Raymond Ivrea 9 x Great Grandson of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandmother: Ettiennette Countess Burgundy
Great x 2 Grandfather: Alfonso VII King Castile VII King Leon -2 x Great Grandson of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: Alfonso "Brave" VI King Leon VI King Castile
Great x 3 Grandmother: Urracca "Reckless" Jiménez Queen Consort Aragon and Pamplona 2 x Great Granddaughter of Hugh I King of the Franks
Great x 4 Grandmother: Constance Burgundy Queen Consort Castile and Leon Great Granddaughter of Hugh I King of the Franks
Great x 1 Grandmother: Constance of Castile Queen of the Franks daughter of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: Ramon Berenguer "Towhead" Barcelona II Count Barcelona
Great x 3 Grandfather: Raymond III Count Barcelona
Great x 2 Grandmother: Berenguela Barcelona Queen Consort Castile and Leon 11 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: Gilbert Gevaudan
Great x 3 Grandmother: Douce Gevaudan Countess Barcelona 10 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandmother: Gerberga Arles 9 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor