Meistr Coleg St Catherine's, Dirprwy Is-Ganghellor, ac Athro Gwyddor Peirianneg, Prifysgol Rhydychen   Roger Ainsworth, who died in Oxford on February 23^rd, was, at his death, the longest-serving Head of House in post in the University. He had led his College, St Catherine’s, since 2002 with an ... Darllen rhagor