Grim of Thornby
- see device in Lochac Roll of Arms
- resident of Southron Gaard
- formerly or alternatively known as Deordanaan of Southron Gaard
- formerly or alternatively known as Deoradhan Cuideag
- 341st in sequence in the Order of Precedence
- Ruled as Baron of Southron Gaard with Baroness Alexandra de Santiago from 25 January 2020 to a day unknown
Award of Arms - 5 February 2001
Golden Sword - 4 February 2006
Star and Lily - 4 February 2010
Cockatrice - 3 February 2012
Royal Cypher - 6 July 2013
Court Barony - 21 January 2014
Laurel - 22 January 2014
Red Wyvern - 20 January 2016
Royal Cypher - 13 July 2019
Royal Cypher - 29 October 2022
Prometheus - 9 September 2023
Catkin - 4 May 2024