Complex sentence: After Baldwin's death the prosperity of Trier was checked by wars and disputes between rival claimants to the see, and in 1456 the estates united for the purpose of restoring order, and secured the right of electing their archbishops.
Split into simpler sentences: After Baldwin's death, the prosperity of Trier was checked by wars and disputes between rival claimants. In 1456 the estates united for the purpose of restoring order and secured the right of electing their archbishops.