Question: Who is the mother-in-law of Infanta Alicia, Duchess Of Calabria?
Sentence (from "Infante Alfonso, Duke of Calabria"): Infante Alfonso of Spain, Prince of the Two Sicilies, Duke of Calabria (30 November 1901 – 3 February 1964) was one of two claimants to the title of the head of the House of Bourbon-Two Sicilies from 1960 until his death in 1964.
Relevant evidence: No