Patrick O'Donnell (Invincible)

Patrick O'Donnell (Irish: Pádraig Ó Domhnaill; 1835 – 17 December 1883) was an Irish republican executed for the murder of James Carey, whose testimony for the prosecution led to the executions of five men adjudged responsible for the Phoenix Park Murders. O'Donnell was from Gweedore, County Donegal.

On 6 May 1882, the most senior Irish civil servant, the Permanent Undersecretary, Thomas Henry Burke and the newly appointed Chief Secretary for Ireland, Lord Frederick Cavendish – who was also the nephew of Prime Minister William Ewart Gladstone – were killed as they walked through Phoenix Park in Dublin by a man who stabbed them both with hospital scalpels. Most accounts indicate that Burke alone, not Cavendish, was the intended target. Cavendish happened to be in the wrong place at the wrong time.

A number of republican groups were involved in revolutionary activity in the US and the UK. Among these was the Irish Republican Brotherhood, founded in the United States on 17 March (St. Patrick's Day), 1858, and widely known as the Fenians. The group carried out a number of paramilitary activities against the British Empire, especially in the United Kingdom, targeting prisons and arsenals. Their expressed goal was full independence for Ireland and the creation of an Irish Republic. A more radical splinter group, the Invincibles, planned to execute Thomas Burke, a Catholic who collaborated with British rule by helping to administer it from Dublin Castle. The new Chief Secretary of Ireland, Lord Cavendish, was not an intended victim but happened to be out walking with Burke at the time of the attack.

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