Mathieu II, baron de Montmorency

Mathieu II, baron de Montmorency (born c. 1174—died Nov. 24, 1230) was a French noble prominent in the service of three kings. Montmorency first fought under Philip II against the English in Normandy from 1202 to 1214. In 1215 he joined the crusade against the Albigensian heretics in southern France. On his return he was made constable of France in 1218, an office he strengthened by adding to its duties the command of the army....