Cambridge was a city in England.
It was the location of the University of Cambridge, which included St Cedd's College. (WC: Shada, PROSE: Shada, TV: Shada)
In 1811, William Blake was visiting friends in Cambridge when he fell through a hole in time into another universe. (PROSE: The Pit)
By the 21st century, Ian Chesterton and Barbara Wright were professors in Cambridge. (TV: Death of the Doctor)
A replica of Emmanuel College in Cambridge was built by the Knights of Jeneve on the planet Ardethe. (PROSE: Deadfall)