Complex sentence: He negotiated the Treaty of Tournai (1298) and Treaty of Montreuil (1299) with the English, and created the Collège de Montaigu in 1314.
Split into simpler sentences: He negotiated the Treaty of Tournai (1298) and Treaty of Montreuil (1299) with the English. He created the Collège de Montaigu in 1314.