Peter I of Courtenay (September 1126 – 10 April 1183) was the sixth son of Louis VI of France and his second wife, Adélaide de Maurienne. He was the father of the Latin Emperor Peter II of Courtenay.

Peter was born in France and died in Palestine. In about 1150, he married Elizabeth de Courtenay (1127 – September 1205), the daughter of Renaud de Courtenay and Hawise du Donjon, thus starting the Capetian line of the House of Courtenay.

Rumour has it that he is buried in a tomb in the floor of Exeter Cathedral, next to Elizabeth; however, no physical evidence currently exists and the historians at the cathedral can find no do*entation to support this rumour. The couple had ten children:

• Phillip (1153 – before 1186)
• Peter II, Latin Emperor of Constantinople (c. 1155 to 1218)
• Unnamed daughter (c. 1156 –:?)
• Alice (died 12 February 1218), married Count Aymer of Angoulême
• Eustachia (1162–1235), married firstly William of Brienne, son of Erard II of Brienne and of Agnès of Montfaucon, secondly William of Champlitte
• Clémence (1164 –:?)
• Robert, Seigneur of Champignelles (1166–1239), married in 1217 Mathilde of Mehun (d. 1240). Their eldest son was Peter of Courtenay, Lord of Conches.
• William, Seigneur of Tanlay (1168 – before 1248)
• Isabella (1169 – after 1194)
• Constance (after 1170–1231)

Notes

References

• Mosley, Charles (2003). Burke's Peerage, Baronetage & Knightage, 107th edition, 3 volumes. Burke's Peerage. ISBN:0971196621.
• Perry, Guy (2013). John of Brienne: King of Jerusalem, Emperor of Constantinople, c.1175-1237. Cambridge University Press.
• Vincent, Nicholas (1999). "Isabella of Angouleme:John's Jezebel". In Church, S. D. (ed.). King John: New Interpretations. The Boydell Press.