Anna Caterina del Cossa
- resident of Ynys Fawr
- formerly or alternatively known as Aine of Ynys Fawr
- 613th in sequence in the Order of Precedence
- Ruled as Baroness of Ynys Fawr with Baron Arnfinnr Ákason from 25 September 2004 to 2 June 2007
- Award of Arms
- given by Alaric I and Nerissa I,
- on 25 October 2003,
- at Laurel Bus Weekend (Laurel Freedom) (25 Oct 2003 at Moonah Community Centre, Moonah, Hobart, TAS, AU).
- Court Barony
- given by Alfar II and Gudrun II,
- on 2 June 2007,
- at Ynys Fawr Baronial Investiture of Snorri and Stella (2-3 Jun 2007 at Tasmania, AU).