St Edmund's College (colloquially Eddie's) is one of the 31 constituent colleges of the University of Cambridge. It is the second oldest of the four Cambridge colleges oriented to mature students, which only accept students reading for either masters or doctorate degrees, or undergraduate degrees if they are aged 21 or older (the oldest being Hughes Hall and the others being Wolfson College and Lucy Cavendish College; additionally, Darwin College and Clare Hall admit graduate students only). Over three-quarters of St Edmund's students are studying towards higher degrees, usually the PhD, MPhil or LLM degrees. The college is named after St Edmund of Abingdon (1175–1240) who was the first known Oxford Master of Arts and the Archbishop of Canterbury from 1234 to 1240.