A coffin marked 'RIP British Empire' was thrown into Dublin's River Liffey during the Queen's funeral on Monday.
The act was carried out by Anti Imperialist Action Ireland during a protest march through the city.
The move was said to have been a recreation of an action by former socialist leader James Connolly in Dublin in 1897 during a visit to the city by Queen Victoria - the late monarch's great-great-grandmother.