What day of the week was September 19, 1356?

The day of the week September 19th, 1356 fell on was a Sunday.

Peter I the Duke of Bourbon (b. 1311) died on this day in 1356. As did Walter VI the Count of Brienne (b. 1304) .

Battle of Poitiers: An English army under the command of Edward the the Black Prince defeats a French army and captures the French king, John II.