Built London and Glasgow, Glasgow, laid down August 1899, completed December 1903.
The sixth HMS Monmouth was a First Class armoured cruiser built on the Clyde in 1901 who saw service with the Home Fleet before being transferred to the China Station in 1906, returning to the UK in 1913. In January 1914 she was placed in reserve and re-mobilised in August 1914 when she joined the 5th Cruiser Squadron and sailed for the South East Coast of America. On 1 November 1914 off Coronel, Chile, Monmouth in company with Good Hope and Glasgow engaged Von Spee's much more powerful Pacific squadron; Monmouth fought courageously before being finally overwhelmed and sunk by the German cruiser Nurnburg with the loss of all hands.
Length 440 feet pp 463 feet 6 inches overall, beam 66 feet, draught 25 feet, displacement 9,800 tons load.
2 shaft triple expansion engines, 22,000 ihp, 23 knots
Monmouth 22,189 ihp = 22.6 knots
4-2in belt, 5in barbettes, 5in turret faces, 2-0.5in decks
14 x 6in Mk VII (2 x 2, 10 x 1), 10 x 12pounder (10 x 1), 3 x 3pounder (3 x 1), 2 x 18in TT