Deaths on April 6

Guillaume de Sonnac, Grand Master of the Knights Templar

Guillaume de Sonnac (died 6 April 1250) was Grand Master of the Knights Templar from 1247 to 1250.

8 Feb

Battle of Al Mansurah
Seventh Crusade: Crusaders engage Ayyubid forces in the Battle of Al Mansurah.
6 Apr

Battle of Fariskur
Seventh Crusade: Ayyubids of Egypt capture King Louis IX of France in the Battle of Fariskur.