One of the new titles given to William Windsor when he married Kate Middleton was Baron Carrickfergus. This was considered an offensive title by some Irish people who knew that the town of Carrickfergus was where King William III of England began his Protestant conquest of Ireland in 1689. Britain also used an historic castle in Carrickfergus as a military stronghold, armoury, and prison from the late 18th century until World War II.
According to the Daily Beast some saw the feudal title as a “hostile hint that part of Ireland is still under British rule”.
Unfortunately for British monarchists their loyalist supporters in that town were not satisfied by what they might have seen as a gesture of sympathy for their beliefs. The following July paramilitaries there organised rioting. Dozens of cars were hijacked and set on fire, Molotov cocktails were thrown and several police officers were injured.