King chulaongkorn is regarded as one of the greateat kings of Siam. The Thai call him The Great Beloved King As the oldest son of king Mongkut, Prince Chulalongkorn succeeded hid father in 1868 at the age of fifteen.Because of his immaturity,Chao Praya Si Suriyawong
Served as regent for four years. During this time,he traveled to neighboring western colonies including Singapore,Java and India , to study western politics, administration,lifestyle and colonialism.Later duringhis reign, he also visited Europe twice, in 1897and 1907.