William III, Holy Luthori Emperor

William III (4 November 2477–31 May 2566) of the House of Orange was the Holy Luthori Emperor of All Terra from 2501 to 2566. He assumed the throne when His Serene Majesty's Government Streamlining Act took effect on 1 April 2501, declaring him Emperor after being elected Viceroy in February 2496. William married his first cousin, Mary, and they produced one child, who succeeded William as Mary I. William's wife died in childbirth and so the daughter was named after her.

William led the native Loyalist forces in the War of Luthori Succession. This probably killed him, but he died knowing that the Crown was safely in the hands of his daughter, thanks in no small part to the assistance of her husband Emperor Phillip II of Alduria who not only committed Aldrian forces to the war but also rallied Royalists from accross Terra.

Titles and styles

 * Titles
 * William III, By the Grace of God, Holy Luthori Emperor, Defender of the Faith, &c (1 April 2501–31 May 2566)
 * Prince of Orange (4 November 2477–31 May 2566)
 * ''King of New Jerusalem (1 April 2501–31 May 2566)
 * Holy Luthori Emperor's Viceroy (February 2496-April 2501)
 * Styles
 * His Highness (4 November 2477-1 April 2501)
 * His Excellency The Rt Hon (February 2496-April 2501)
 * His Holy Majesty (1 April 2501–31 May 2566)
 * Primary form of address
 * His Highness Prince William III of Orange (4 November 2477–April 2501)
 * His Holy Majesty The Holy Luthori Emperor (1 April 2501–31 May 2566)