[1] In Dublin city, the display of a white plasterwork horse in the fanlight of a door was believed to denote a household that was Protestant and loyal to the United Kingdom.
One example held in the Ulster Museum featured the inscription "The glorious and immortal memory of King William and his Queen Mary and perpetual disappointment to the Pope, the Pretender, and all the enemies of the Protestant religion".
[4] An equestrian statue of William by Grinling Gibbons stood on College Green, Dublin, which was unveiled on 1 July 1701.
[6] In Northern Ireland, murals in Unionist or Loyalist areas of the country often depict William and his success at the Battle of the Boyne.
[10] Other days celebrated by Irish protestants in memory of William were his birthday on 4 November,[5] the date of his landing in England, and his victory at the Battle of Aughrim on 1 July.