Complex sentence: He was once again appointed Trier at the 1487 parliament, and mustered men for Henry's expedition the next year; however, he also lost the constableship of Wallingford again.
Split into simpler sentences: He was once again appointed trier at the 1487 parliament, and mustered men for Henry's expedition the next year. Around the same time he also lost the constableship of Wallingford again.