Oswald Charles Eugène Marie Ghislain de Kerchove de Denterghem (1 April 1844 â 20 March 1906) was a Belgian liberal politician. Oswald de Kerchove was a son of the Ghentian mayor Charles de Kerchove de Denterghem.<br /> De Kerchove was a lawyer and became a liberal senator. He was governor in Hainaut from 1878 to 1884. He was an internationally recognized authority in the study of palms and orchids.