The nearby abbey of Valle Crucis (‘The Valley of the Cross’) took its name from the pillar; families of the rulers of northern Powys were buried at the abbey church.
Cafodd abaty Glyn y Groes (‘Valle Crucis’) gerllaw ei enw o’r golofn; claddwyd teuluoedd llywodraethwyr gogledd Powys yn eglwys yr abaty.