The Portuguese navy according to the Nederlandsche Staatscourant dated 3 August 1825

London, 30 July. According to newspapers of Lisbon was a 26-gun corvette launched 5 July in presence of the king an the princesses and named after the infante Maria Isabella.

Source
Antonio Marques Esparteiro. Catalogo dos navios brigantinos (1640-1910). Lisbon, 1976.

Note
1. 24-gun corvette launched at Lisbon 4 July 1825. Called D. Isabel Maria, after 1833 Isabel Maria. In 1854 sold at Lisbon as useless.