Complex sentence: Geoffroy du Breuil of Vigeois was a 12th-century French chronicler, trained at the Benedictine abbey of Saint-Martial of Limoges, the site of a great early library.
Split into simpler sentences: Geoffroy du Breuil of Vigeois was a 12th-century French chronicler. He was trained at the Benedictine abbey of Saint-Martial of Limoges, the site of a great early library.