The College of St. Antoninus was situated at Brock University, in the Barony of Rising Waters. The College was active between 1998 to 2003. The College was established by Magistra Sciath ingen Chaennaig after she emigrated from An Tir. Baroness Genevieve Chastellain d’Anjou was the original patron of the College, and the college's first convocation included 5 graduates from the Fellowship Program. The College was awarded the Award of the Amber Crystal in 2002.

The mundane counterpart to the College was called the Brock University Medieval and Renaissance Club (BMARC), and was organized by Baroness Celeste D'Arles, as Founder and President. BMARC won the Best New Club of Year Prize in 2000.

During this AS XXXIII, the College of St. Antoninus was founded within the Barony of Rising Waters. Its name and device were accepted by the College of Heralds at Pennsic the following year.