Justus Mauritius Marcus was Regional Bishop of Saldanha Bay in the Diocese of Cape Town, 2002 to 2003, having served as Dean of Kimberley and Rector of St Cyprian's Cathedral from 1992 to 2002. He died from cancer, aged 48, on 1 December 2003. Marcus was predeceased by his first wife, Milly (who died in Kimberley in 2000). His second wife and widow is , a fellow priest who then fulfilled a research ministry in the Anglican Church of Southern Africa at the behest of two successive Archbishops of Cape Town before returning to Wales in late 2013.