John I of Dreux

John I of Dreux (1215–1249) was the son of Count Robert III and Aénor of Saint-Valery. Knighted by Louis IX, he followed the king against the English in Poitou, fighting at Taillebourg in 1242, and then accompanied him on the Seventh Crusade in 1249.

The expedition stopped in Cyprus, and John died there at Nicosia before reaching the fighting. In 1240 he had married Marie of Bourbon, daughter of Archambaud VIII of Bourbon; their son Robert IV succeeded him.