Menu Welcome to Trinity School Trinity School has a long history: in 685 there was a school in Carlisle for Christians founded by St Cuthbert. It wasn't Trinity, of course, but the plaque by the door of the Carliol building notes the tradition of learning, based on Christian teaching, which was established all those years ago. Trinity also has a short history: in 1968, it was formed when the Creighton and Margaret Sewell School joined with the Carlisle Grammar School. Even since then, there have been substantial changes to the buildings, and to our character, as we have become an Academy. Although Trinity School is a relatively large school this brings with it great opportunities, for the range of subjects and activities that we can offer. It also brings home to us the importance of looking after each individual student, from the day of arrival. We do a great deal to make sure that each student does really well.