After the Paknam crisis in 1893 the French colonist troops occupied Chanthaburi, returning it in 1905 when Thailand gave up ownership of the western part of Cambodia. A significant minority of Chanthaburi citizens are native Vietnamese, who came there in three waves - first in the 19th century during an anti-Catholic persecution in Cochin China, a second wave came in the 1920s to 1940s fleeing from French Indochina, and a third one after the communist victory in Vietnam in 1975. Thus the town of Chanthaburi is the seat of a Bishop of Chanthaburi since 1944
