Queen mother
Her mother, Queen mother María Christina, had been the fourth queen consort of Ferdinand VII of Spain, a maternal uncle with whom she had had two daughters; the elder, Infanta María Isabel Luisa, was proclaimed Queen Isabella II of Spain at the age of three upon her father's death on 29 September 1833, with Queen Mother María Christina as regent. María Christina married Agustín Fernando Muñoz, a sergeant from the royal guard, on 28 December 1833, and María Amparo was their first child, born in Madrid in 1834.