The Sulu Sea
The region comprises parts of what are now Malaysia, Indonesia and the Philippines.
Maps of The Sulu Sea: Mindanao, Sulu and North Borneo
1734 - Una carta hidrográfica y corográfica de las islas Filipinas, Bibloteca Digital Mundial
1761 - Map of part of Borneo, and The Sooloo Archipélago From the Biblioteca Digital Hispánica (BDH), a resource of the Biblioteca Nacional de España, 0000130760. Based on maps by A. Alrymple.
1887 — Mapa Etnográfico de Mindanao y Joló. Ethnographic Map of Mindanao and Sulu for the Missionaries of the Society of Jesus. BDH 0000248154