Duke of Connaught

The title of Duke of Connaught and Strathearn was granted by Queen Victoria of the United Kingdom of Great Britain and Ireland to her third son, Prince Arthur, on 24 May 1874. At the same time, he was also granted the subsidiary title of Earl of Sussex.

By tradition, members of the sovereign's family received titles associated with England, Scotland, Ireland and Wales, the four Home Nations that made up the United Kingdom of Great Britain and Ireland. The Dukedom of Connaught and Strathearn was named after one of the four provinces of Ireland, now known by its modern Irish language-based spelling of Connacht. It was seen as the title that, if available, would henceforth be awarded to the British monarch's third son. The first son was traditionally Duke of Cornwall (in England) and Duke of Rothesay (in Scotland), and would be made Prince of Wales at some point, while the second son would often become Duke of York, if the title was available.

Since the exit of the Irish Free State from the United Kingdom in 1922, titles related to locations in the Free State (and later the Republic of Ireland) have not been awarded (though Prince Edward, Prince of Wales—in 1936 briefly King Edward VIII—was made a Knight of the Order of St Patrick). However, territorial titles relating to Northern Ireland have continued to be awarded.

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