Siridean MacLachlan
- resident of Stormhold
- formerly or alternatively known as Sheridon MacLachlan - see device in Lochac Roll of Arms
- formerly or alternatively known as Sheridan of Grimfells
- formerly or alternatively known as Corwyn O'Siridean
- 22nd in sequence in the Order of Precedence
- Ruled as King of Calontir with Queen Sheelagh O'Kyan from 3 June 2004 to 9 November 2004
- Ruled as King of Lochac with Queen Siban ingen Robartaig from 5 July 2008 to 10 January 2009
- Ruled as King of Lochac with Queen Margie of Glen More from 7 January 2012 to 7 July 2012
Award of Arms - 17 July 1993
Iren-Fyrd - 26 February 1994
Iren-Hirth - 30 August 1997
Torse - 24 October 1998
Chivalry - 15 July 2000
Archaic Fewment - 2 December 2000
Sword of Calontir - 15 September 2001
Queen's Endorsement of Distinction - 13 October 2001
King's Favor (Calontir) - 6 September 2003
Cross of Calontir - 10 January 2004
County - 11 September 2004
Duchy - 10 January 2009
Taillefer - 8 May 2010
Royal Cypher - 12 January 2013
Silver Pegasus - 12 January 2013