Complex sentence: Charles d'Albret (d. October 25,1415) was Constable of France two times: 1402-11,1413-15 and co-commander of the French army at the Battle of Agincourt where he was killed.
Split into simpler sentences: Charles d'Albret (d. October 25,1415) was Constable of France two different times: from 1402 until 1411, and again from 1413 until 1415. He was also the co-commander of the French army at the Battle of Agincourt where he was killed.