Political Martyrs' Monument

Designed by Thomas Hamilton and erected in 1844, it is a 90 ft (27 m) tall obelisk on a square-plan base plinth, all constructed in ashlar sandstone blocks.

It is a good cause—it shall ultimately prevail—it shall finally triumph.I know that what has been done these two days will be Re-Judged.In 1837 the Radical politician Joseph Hume MP initiated a plan to erect a monument to the five men.

The monument was designed by Thomas Hamilton, who is also responsible for a number of other structures on Calton Hill, including the former Royal High School building and the memorial to Robert Burns.

Palmer remained in New South Wales and established a thriving beer-brewing operation near Sydney Cove; he died of a fever on a trading voyage back to England.

Muir escaped in early 1796, stowing away aboard an American ship and ultimately making his way to revolutionary France where he died on 26 January 1799.