John I of Dammartin

Jean II de Trie (c. 1225–1302), son of Mathieu I de Trie and Marsilie de Montmorency, succeeded his father in 1272 as Count of Dammartin and lord of Trie and Mouchy. He married first Ermengarde, then Yolande, daughter of John I, Count of Dreux; by Yolande his children were Renaud, his heir, and Mahaut.

He is also identified with the trouvère Jehan de Trie, to whom two surviving courtly chansons are attributed. Fighting for Philip the Fair against the Flemings, he was killed on 11 July 1302 at the Battle of the Golden Spurs.