BLACKADDER of that Ilk Azure, on a chevron, Argent, three roses, Gules.
Seal of Robert Blackadder, first Archbishop of Glasgow. St Kentigern is shown dressed as a monk, holding a book. The legendary salmon with the ring is beside him, and belowthem is a shield bearing the arms of Blackadder. Blackadder had used a different seal in his early years as bishop.