On 28 May 1262 [his father] King Philip III of France (age 17) and [his mother] Isabella Barcelona Queen Consort France (age 14) were married. She the daughter of [his grandfather] James I King Aragon (age 54) and [his grandmother] Violant Árpád Queen Consort Aragon. He the son of [his grandfather] King Louis IX of France (age 48) and [his grandmother] Margaret Provence Queen Consort France (age 41). They were second cousin once removed. He a great x 2 grandson of King Henry "Curtmantle" II of England.

On 21 Aug 1274 [his father] King Philip III of France (age 29) and [his step-mother] Maria of Brabant Queen Consort France (age 18) were married. She by marriage Queen Consort of France. She the daughter of Henry Reginar III Duke Brabant and Adelaide Burgundy Duchess Brabant. He the son of [his grandfather] King Louis IX of France and [his grandmother] Margaret Provence Queen Consort France (age 53). They were fourth cousins. He a great x 2 grandson of King Henry "Curtmantle" II of England. She a great x 5 granddaughter of King William "Conqueror" I of England.

On 16 Aug 1290 Charles Valois I Count Valois (age 20) and Margaret Capet Countess Valois (age 17) were married. She by marriage Countess Valois. He the son of King Philip III of France and Isabella Barcelona Queen Consort France. They were second cousins. He a great x 3 grandson of King Henry "Curtmantle" II of England. She a great x 3 granddaughter of King Henry "Curtmantle" II of England.

In 1297 [his son-in-law] John Capet III Duke Brittany (age 10) and [his daughter] Isabelle Valois Duchess Brittany (age 5) were married. She by marriage Duchess Brittany 1221 Dreux. She the daughter of Charles Valois I Count Valois (age 26) and [his wife] Margaret Capet Countess Valois (age 24). They were third cousins. He a great grandson of King Henry III of England. She a great x 4 granddaughter of King Henry "Curtmantle" II of England.

In 1302 Charles Valois I Count Valois (age 31) and Catherine Courtenay Countess Valois (age 27) were married. She by marriage Countess Valois. He the son of King Philip III of France and Isabella Barcelona Queen Consort France. They were third cousin once removed. He a great x 3 grandson of King Henry "Curtmantle" II of England.

On 19 May 1305 [his son-in-law] William Hainault I Count Hainault III Count Avesnes III Count Holland II Count Zeeland (age 19) and [his daughter] Joan Valois Countess Zeeland Holland Avesnes and Hainault (age 11) were married. She by marriage Countess Zeeland, Countess Holland, Countess Avesnes, Countess Hainault. She the daughter of Charles Valois I Count Valois (age 35) and [his former wife] Margaret Capet Countess Valois. He the son of John Hainault II Count Hainault II Count Holland and Philippa Luxemburg Countess Hainault and Holland (age 53). She a great x 4 granddaughter of King Henry "Curtmantle" II of England.

In 1308 Charles Valois I Count Valois (age 37) and Mahaut Chatillon Countess Valois (age 15) were married. She by marriage Countess Valois. The difference in their ages was 22 years. He the son of King Philip III of France and Isabella Barcelona Queen Consort France. They were second cousin once removed. He a great x 3 grandson of King Henry "Curtmantle" II of England. She a great granddaughter of King Henry III of England.

In 1310 [his son-in-law] Guy Chatillon I Count Blois and [his daughter] Margaret Valois (age 15) were married. She the daughter of Charles Valois I Count Valois (age 39) and [his former wife] Margaret Capet Countess Valois. He the son of Hugh Chatillon II Count Blois and Beatrix Dampierre Countess Blois. She a great x 4 granddaughter of King Henry "Curtmantle" II of England.

In Apr 1314 [his son] Charles Valois Count Alençon (age 17) and [his daughter-in-law] Jeanne Joigny were married. She by marriage Countess Alençon. He the son of Charles Valois I Count Valois (age 44) and [his former wife] Margaret Capet Countess Valois. He a great x 4 grandson of King Henry "Curtmantle" II of England.

In 1320 [his son-in-law] Robert III Artois (age 33) and [his daughter] Joan Valois Countess Zeeland Holland Avesnes and Hainault (age 26) were married. She the daughter of Charles Valois I Count Valois (age 49) and [his former wife] Margaret Capet Countess Valois. They were third cousins. He a great grandson of King Henry III of England. She a great x 4 granddaughter of King Henry "Curtmantle" II of England.

In 1321 Aymer de Valence 2nd Earl Pembroke (age 46) and [his sister-in-law] Marie Chatillon Countess Pembroke (age 18) were married. She by marriage Countess Pembroke. The difference in their ages was 28 years. He the son of William de Valence 1st Earl Pembroke and Joan Munchensi Countess Pembroke. They were half first cousin twice removed. She a great granddaughter of King Henry III of England.