Filling the Gaps in Magellan’s Route through the Pacific Ocean and the Philippines

A new candidate is added to Limasawa and Butuan as the location of the first Easter Sunday Mass in Mazaua (Philippines) in 1521, with an eastern route at Mindanao. Pigafetta’s maps, combined with his distances in modern reconstructions of the archipelago’s map, advocate a Mazaua beyond Mindanao’s north-eastern corner. Reconsidering the primary sources suggests Masapelid Island with Mahaba Island. An appendix shows Magellan’s day-to-day progress in the Pacific Ocean. In it, the Fakahina and Caroline Islands are confirmed by calculation as Magellan’s San Pablo and Tiburones (Sharks) Islands.