Kaimana

The Kaimana dynasty was the royal house of Sran, later called Kaimana, on the Bomberai Peninsula of western New Guinea. Oral tradition places its foundation in 1309, when the chief Imaga united the villages and tribes of the Pattimunin lands through visits and marriage alliances and took the title Rat Sran Nati Pattimuni, meaning king of Sran. His son Basir Onin moved the court to Borombouw on Adi Island to profit from trade.

Around 1498 the Tidore Sultanate subdued the kingdom during its Hongi expeditions, and it paid tribute in slaves, spices and birds of paradise; the royal family converted to Islam in the 1500s.

In 1808 Nduvin, the Rat Sran IV, moved the capital from Adi Island to E'man, and in 1828 the Dutch built Fort Du Bus nearby at Lobo, drawing the kingdom into the Netherlands-Tidore sphere.