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Male John I de Brienne King of Jerusalem Click to view John I de Brienne King of Jerusalem in the family tree

John I de Brienne was born about 1195 in Acre, Palestine.  He died in Constantinople, Turkey.

John I de Brienne's first family with Berengaria de LeUn de Castile

‌John I de Brienne and Berengaria de LeUn were married in a religious ceremony in 1224 in Toledo.  They had three sons named Jean de Brienne II, Louis d' Acre de Brienne and Alphonse de Brienne.

John I de Brienne's second family with Mary la Marquise Queen of Jerusalem

They had two daughters named Isabel II of Jerusalem and Marie.

John I de Brienne's third family with Agnes de Beaumont

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