Siri Sanga Bo

The House of Siri Sanga Bo was a Sinhalese dynasty that ruled much of Sri Lanka from the 1220s to the 1590s. Its founder, Vijayabahu III, a descendant of King Sirisangabo, resisted Kalinga Magha and recovered the Buddha's tooth relic, around which Buddhist kingship was restored.

After a Pandyan army carried the tooth relic from Yapahuwa in the 1270s, Parakramabahu III secured its return. Later kings ruled from Gampola and Kotte, where Parakramabahu VI, reigning from 1412, conquered Jaffna in 1450 and for the last time united the island under one Sinhalese crown.

The Kotte kingdom split in the Vijayaba Kollaya of 1521, and Dharmapala ceded it to the Portuguese in 1597. The dynasty's last ruler, Rajasinha I of Sitawaka, died in 1592 without an heir, and his kingdom was sacked by the king of Kandy and the Portuguese.