[1] The 27-metre-high (89 ft) monument (designed by Thomas Harrison) was erected close to Paget's country retreat at Plas Newydd, in 1817.

[2] On the foundation stone there is an inscription in English, Welsh and Latin: The inhabitants of the counties of Anglesey and Caernarvon have erected this column in grateful commemoration of the distinguished military achievements of their countryman HENRY WILLIAM, MARQUESS OF ANGLESEY the leader of the British Cavalry in Spain throughout the arduous Campaign of 1807 and Second in Command of the Armies confederated against France at the memorable battle of Waterloo on the 18th of June 1815.

Thomas Harrison Architect.During the battle of Waterloo, Paget (at that time Lord Uxbridge) lost his leg to a cannonball hit.

[3] The column stands on an outcrop of blueschist rock, formed when pillow lavas were metamorphosed under high pressure but at relatively low temperature.

In September 2020, £19,300 was granted by the National Lottery Heritage Fund's Emergency section for the installation of CCTV and other security features.