|The locations of the PUG|
In 1551 St. Ignatius of Loyola laid the basis of the Pontifical Gregorian University, founding a free School of Grammar, Humanity and Christian Doctrine in Rome, named for many centuries the Roman College.
In 1583 Gregory XIII endowed the University with a new and larger premises, therefore he was said "founder" and "patron". In memory of its benefactor, later on the Roman College took the name of Gregorian University, whose High Chancellor is the Prefect of the Congregation for Catholic Education and whose Vice-High Chancellor is the Superior.
Pope Pius XI wanted the Pontifical Biblical Institute and the Pontifical Oriental Institute as-sociated with the University.
Each institution is legally distinct, with its own Rector, with its own academic staff and its own administration. These three institutions, closely cooperating with each other through the ex-change of professors, student multiple enrolment and pooling a large number of courses, gather in this way various departments or faculties mainly engaged in research and higher education. They are:
In the Pontifical Gregorian University
In the Pontifical Biblical Institute
- Biblical Faculty
- Faculty of Ancient Near Eastern Studies
In the Pontifical Oriental Institute
- Faculty of Eastern Church Studies
- Faculty of Eastern Canon Law