in 1209, Cambridge and the area surrounding it already had developed a scholarly and ecclesiastical reputation due largely to the intellectual and academic contributions of monks from the nearby Ely Cathedral. The founding of the University of Cambridge, however, was inspired largely by an incident at the University of Oxford during which three Oxford scholars, as an administration of justice in the death of a local Oxford-area woman, were hanged by town authorities without first consulting ecclesiastical authorities, who traditionally would be inclined to pardon scholars in such cases. But during this time, Oxford's town authorities were in conflict with King John. Fearing more violence from Oxford townsfolk, University of Oxford scholars began leaving Oxford for more hospitable cities, including Paris, Reading, and Cambridge. Enough scholars ultimately took residence in Cambridge to form, along with the many scholars already there, the nucleus for the new university's formation.
By 1225, a chancellor of the university was appointed, and writs issued by King Henry III in 1231 established that rents in Cambridge were to be set secundum consuetudinem universitatis, according to the custom of the university, and established a panel of two masters and two townsmen to determine these. A letter from Pope Gregory IX two years later to the chancellor and the guild of scholars granted the new university ius non trahi extra, or the right not to be drawn out, for three years, meaning its members could not be summoned to a court outside of the diocese of Ely. After Cambridge was described as a studium generale in a letter from Pope Nicholas IV in 1290, and confirmed as such by Pope John XXII's 1318 papal bull, it became common for researchers from other European medieval universities to visit Cambridge to study or give lectures.
=== Foundation of the colleges ===
The 31 colleges of the present-day University of Cambridge were originally an incidental feature of the university; no college within the University of Cambridge …
