The eldest daughter of Carlos VII was Bianca de Borbón y Borbón-Parma (1868-1949). She married Archduke Leopold Salvator of Austria (1863-1931). In 1943 one of their sons presented himself as Carlist claimant in succession to his great-uncle Alfonso Carlos. Since this claim comes through a female line, it is rejected by most Carlists.
Carlo Pio de Habsburgo-Lorena y Borbón (Archduke Karl Pius of Austria) was Carlist claimant from 1943 to 1953. He was supported by some of General Franco's officials from the Movimiento Nacional. As he assumed the title of King Carlos VIII, the movement that supports this branch of the family is called carloctavismo.
Antonio de Habsburgo-Lorena y Borbón (Archduke Anton of Austria) was the brother of Carlo Pio and was Carlist claimant (Carlos IX) from 1953 to 1961.
Francisco José de Habsburgo-Lorena y Borbón (Archduke Franz Josef of Austria) was the brother of Carlo Pio and Antonio and was Carlist claimant (Francisco I) from 1961 to 1975.
Domingo de Habsburgo-Lorena y Hohenzollern (Archduke Dominic of Austria) is the son of Antonio and has been Carlist claimant (Domingo I) from 1975 until present. He has the support of only a tiny minority of Carlists including the Comunión Carloctavista y Círculo Carlos VIII.
Some carloctavistas consider that Domingo has contracted an unequal marriage and is thus ineligible to succeed to the throne [1]. Following the version of the succession law advocated by the carloctavistas, that if the direct male line dies out the nearest female relative of the last king inherits the crown with succession to her heirs male, then with only descent through equal marriages allowed the claim would have passed on the death of Francisco José in 1975 to Infante Juan, Count of Barcelona. This would make the present de facto king Juan Carlos of Spain the Carlist king, although, as all his children have contracted unequal marriages, the Carlist claim will pass on his death to Infante Carlos, Duke of Calabria. However, many Carlists regard the current de facto Spanish royal family as disqualified (see above). If Alfonso XII and his heirs are discounted, the heir to the Spanish throne under the carloctavista succession rules with descent only through equal marriages is Duarte Pio, Duke of Braganza, the current pretender to the throne of Portugal.
(wikipedia)
