Tags: Christian Bishop.
Wilhelmus Demarteau M.S.F. (24 January 1917 – 5 December 2012) was a Dutch prelate of the Roman Catholic Church. He was one of the oldest Roman Catholic bishops and Dutch bishops.Demarteau was born in Horn Netherlands and ordained a priest on 27 July 1941 for the Congregation of Missionaries of the Holy Family. Demarteau was appointed Vicar Apostolic of the Diocese of Banjarmasin on 6 January 1954 along with Titular Bishop of Arsinoë in Cypro and was consecrated bishop on 5 May 1954.