Arnfinnr Ákason
- resident of Ynys Fawr
- formerly or alternatively known as Arnfinn Akison Alfsjabani
- formerly or alternatively known as Arnfinn of Ynys Fawr
- 678th in sequence in the Order of Precedence
- Ruled as Baron of Ynys Fawr with Baroness Anna Caterina del Cossa from 25 September 2004 to 2 June 2007
Award of Arms - 25 October 2003
Court Barony - 2 June 2007
Royal Cypher - 12 January 2008
Silver Helm - 12 January 2008
Royal Cypher - 10 January 2009
Golden Tear - 30 September 2011