Fenians William Philip Allen, Michael Larkin, and Michael O’Brien, known as the Manchester Martyrs, are publicly hanged for the murder of a police officer in Manchester, England on November 23, 1867, during an incident that becomes known as the Manchester Outrages.

The three are members of the Irish Republican Brotherhood, also known as the Fenians, an organisation dedicated to ending British rule in Ireland, and are among a group of 30–40 Fenians who attack a horse-drawn police van transporting two arrested leaders of the Brotherhood, Thomas J. Kelly and Timothy Deasy, to Belle Vue Gaol. Police Sergeant Charles Brett, traveling inside with the keys, is shot and killed as the attackers attempt to force the van open by blowing the lock. Kelly and Deasy are released after another prisoner in the van takes the keys from Brett’s body and passes them to the group outside through a ventilation grill. The pair escape and make their way to safety in the United States. They are never recaptured, despite an extensive search.

Two others are also charged and found guilty of Brett’s murder, Thomas Maguire and Edward O’Meagher Condon, but their death sentences are overturned — O’Meagher Condon’s through the intercession of the United States government as he is an American citizen, and Maguire’s because the evidence given against him is considered unsatisfactory. Allen, Larkin, and O’Brien are publicly hanged on a temporary structure built on the wall of Salford Gaol on November 23, 1867, in front of a crowd of 8,000–10,000 people.

The bodies of the three men are buried in the New Bailey Prison graveyard, from which they are transferred to Strangeways Prison cemetery when New Bailey Prison is closed in 1868. In 1991 their remains are cremated and reinterred at Blackley Cemetery in Manchester.

Brett is the first Manchester City Police officer to be killed on duty, and he is memorialised in a monument in St. Ann’s Church. Allen, Larkin, and O’Brien are also memorialised, both in Manchester, where the Irish community makes up more than 10 percent of the population, and in Ireland, where they are regarded by many as inspirational heroes.

(Pictured: Manchester Martyrs monument, Glasnevin Cemetery, Dublin)