Gonville and Caius College is one of the colleges of the University of Cambridge, England. It is often called Caius (said "keys") by the students. It was created in 1348 by Edmund Gonville who gave money to build it. In 1557 John Caius, a doctor, left some more money after studying at the college. The modern name comes from these two people. It now has about 700 students. 