Complex sentence: His son Humphrey suceeded him as the 8th Baron de Bohun and was born in 1276 but was killed in battle at Boroughbridge, dying on the 16th of March, 1321/22.
Split into simpler sentences: His son Humphrey suceeded him as the 8th Baron de Bohun. He was born in 1276 but was killed in battle at Boroughbridge, dying on the 16th of March, 1321/22.