Complex sentence: Zouche's political career was destroyed at the Battle of Bosworth; he remained loyal to Richard, fought for him at Bosworth, and was captured by the victorious Tudor army either during or shortly after the battle.
Split into simpler sentences: Zouche's political career was destroyed at the Battle of Bosworth. He remained loyal to Richard, fought for him at Bosworth, and was captured by the victorious Tudor army either during or shortly after the battle.