St John's College is a constituent college of the University of Oxford. It was founded in 1555 by the merchant Sir Thomas White, intended to provide a source of educated Roman Catholic clerics to support the Counter-Reformation under Queen Mary. St John's is the wealthiest college in Oxford, with a financial endowment of £442.2 million as of 2015, largely due to nineteenth century suburban development of land in the city of Oxford, of which it is the ground landlord.
The college occupies a central location on St Giles' and has a student body of approximately 390 undergraduates and 250 postgraduates. As well as over 100 academic staff, the college is supported by a similar number of other staff.
en.wikipedia.org/wiki/St_John%27s_College,_Oxford 