French paddle steam frigate le Descartes (1840) in 1859

Homeport Brest, France, laid down at Rochefort, France on 11 February 1840, launched on 5 March 1844, on March 1859 fitted out at Brest, Rotterdam machinery supplying 540 hp, wood built and an armament of 20 guns.

Source
Hans Busk. The Navies of the World, London, United Kingdom, 1859.