William III of Cattala

King William III was the King of Cattala and Prince of Roumeli from the 31 January 1918 until his execution in 1940. He was the last monarch from the House of Celestine.

The grandson of Prince Amadeus, he was the first claimant to the deposed Crown to have lived his entire life under Italian repression. William expanded the Celestinian Army, founded by his father Prince Roger, as part of a militarisation campaign that was endorsed publicly by Lord Aston.

William is heralded as the main instigator of the Cattalian War of Independence, in which his army and royalist militias defeated the Italian Army and loyalist governments to restore William as the King of Cattala in February 1918. His subsequent reign saw democratic freedoms instigated by his father expanded across Cattala, and a greater shift of power from the Crown to Parliament.

In June 1940, Italy began bombings of Cattala's major cities and forced King William to abdicate and surrender. He did so, and attempted to evacuate his family to Britain. Their plane was shot down and captured by the Italian Navy and William was flown to Rome, where the whole family was executed by firing squad.

Prince of Amosseri
Aston and William worked closely together and were ideologically similar, with the former seen as a mentor to the Prince.