Peterhouse is the oldest college in the University of Cambridge. It was founded in 1284 by Hugo de Balsham[?], Bishop of Ely. Peterhouse has (2001) approximately 250 undergraduates, 90 graduate students, and 45 fellows, making it one of the smallest Colleges in the University of Cambridge.
... 18 to 24, 33.6% from 25 to 44, 20.6% from 45 to 64, and 9.6% who are 65 years of age or older. The median age is 35 years. For every 100 females there are 96.9 males. ...