Mongkut
Mongkut was the fourth king of Siam under the House of Chakri, titled Rama IV. He ruled from 1851 to 1868. His full title in Thai was Phra Poramenthra Ramathibodhi Srisindra Maha Mongkut Phra Chomklao Chao Yu Hua Phra Sayam Thewa Maha Makut Witthaya Maharat.
18 October 1804
Born on the same birth day (18 October): Aarne Juutilainen • Basil Hall Chamberlain • Christine Charbonneau • Emperor Go-Shirakawa • Irwin M. Jacobs • John Johnson (basketball, born 1947) • Justus Lipsius • Luca Marenzio • Manuel da Nóbrega • Nick O'Hern • Paddy Reilly • Rhod Gilbert • Terry McMillan • Thomas Love Peacock
Born in the same month (October 1804): Allan Kardec • Benjamin Russell (artist) • Pierre François Verhulst • Townsend Harris • Wilhelm Eduard Weber