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.Rumor 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 documentation to support this rumor.
The couple had ten children:
Phillip (1153 – before 1186)
Peter II, Latin Emperor of Constantinople (c.
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)