Somerville College is one of the constituent colleges of which university?

Somerville College is one of the constituent colleges of the University of Oxford in England. Founded in 1879 as Somerville Hall, it was one of the first two women's colleges in Oxford, and its alumnae, such as Margaret Thatcher, Indira Gandhi, Dorothy Hodgkin, Iris Murdoch, Vera Brittain, Cornelia Sorabji, Dorothy L. Sayers and many activists, have played a major role in feminism. Today, around 50 per cent of the students are male.

Somerville has the biggest college library in Oxford and is known for its varied architecture and liberal atmosphere. Its liberal character traces back to its foundation by social liberals as the first non-denominational college in Oxford, deliberately unlike the strictly Anglican Lady Margaret Hall, the other women's college opened in the same year. Somerville is one of the few Oxford colleges where students may walk on the grass and in 1964, Somerville became one of the first colleges to abandon the policy of locking its gates at night to prevent students staying out late.