At which Oxford college did C.S. Lewis teach for most of his academic career?

C.S. Lewis taught for most of his Oxford career at Magdalen College.

He became a Fellow and tutor in English at Magdalen College, Oxford, in 1925. He remained there for nearly three decades, teaching students, supervising essays, and participating in the college’s academic life. His Oxford years included the period in which he became a prominent Christian writer and public intellectual.

Magdalen College is one of the constituent colleges of the University of Oxford. Lewis’s rooms and the college’s grounds are often associated with his friendships, literary discussions, and the informal group known as the Inklings. J.R.R. Tolkien was among his close literary friends, although Tolkien taught at other Oxford colleges.

In 1954, Lewis left Oxford for Cambridge University, where he became the first holder of the newly created Chair of Medieval and Renaissance English. This later appointment is why both Oxford and Cambridge are important in accounts of his academic career.