He continued to write operas, mainly opere serie, and a large number of religious works, until the Prince Regent summoned him to the Portuguese colony of Brazil in 1811.Upon arriving, Portugal was appointed music master to the sons and daughters of the Prince Regent and became the official Royal Composer.He authored the first official national anthems of Portugal (Hymno Patriótico, 1809) and Brazil (Hino da Independência, 1822).[2] In 2023, In the Mateus Palace announced the return of the opera Le donne cambiate from Marcos Portugal as the most affirmative milestone of the XXXI edition of the International Summer Meetings.[4] It was the first time that it was performed with period instruments and in a Portuguese version together with the Mateus Baroque Orchestra at the Teatro de Vila Real.