Literature: Llewellyn, Sacha, and Paul Liss. Portrait of an Artist. Liss Llewellyn, 2021, p.251.
Filliter studied architecture at Oxford University and worked in Manchester and the Isle of Man. The legend Princeps Ballagorriae may be a witty reference to Ballagarey on the Isle of Man where Filliter is known to have undertaken at least one project – proposed alterations and additions to ~Baldroma Beg~, Maughold, Property of R.W. Lascelles, (Isle’s public record office).