Rhianwen ni Dhiarmada
- see device in Lochac Roll of Arms
- resident of Abertridwr
- 94th in sequence in the Order of Precedence
- Ruled as Baroness of Aneala with Baron Steveg Stevegsson from 12 April 1987 to 15 April 1989
- Ruled as Princess of Lochac with Prince Kane Greymane from 31 August 1991 to 11 January 1992
Grant of Arms - 12 April 1987
Leaf of Merit - 2 January 1988
Princess' Cypher - 9 July 1988
Rose Leaf - 7 January 1989
Court Barony - 8 April 1989
Queen's Order of Grace - 8 April 1989
Silver Tear - 4 November 1990
Princess' Cypher - 31 August 1991
Pelican - 31 August 1991
Viscounty - 11 January 1992
Lochac Order of Grace - 5 September 1992
Royal Cypher - 2 January 1993
Lochac Cypher - 14 January 1995
Silver Nib - 28 July 2001
Lord / Lady of Lochac - 12 January 2008
Prometheus - 29 August 2009
Star and Lily - 1 May 2010
Lord / Lady of Lochac - 15 January 2011
Augmentation of Arms - 6 June 2011
Rowan - 28 July 2012
Royal Cypher - 10 January 2015
Coronaria - 5 November 2015