Adelaide of Löwenstein-Wertheim-Rosenberg was the wife of the deposed king Miguel I of Portugal. As a widow, she secured advantageous marriages for their six daughters.

Dom Miguel I, nicknamed "the Absolutist", "the Traditionalist" and "the Usurper", was the King of Portugal between 1828 and 1834. He was the seventh child and third son of King John VI and Queen Carlota Joaquina.