Kittisiri RÄjasiha References Kittisiri RÄjasiha king of Ceylon Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of EncyclopƦdia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Buddhism/ Sri Lankaā¦the 18th century, however, King Kittisiri Rajasiah (1747ā81), who ruled in the upland regions, invited monks from Siam (Thailand) to reform Buddhism and restore the higher ordination lineages. Read Moreā¦the 18th century, however, King Kittisiri Rajasiah (1747ā81), who ruled in the upland regions, invited monks from Siam (Thailand) to reform Buddhism and restore the higher ordination lineages. Read More