Question: Who is Princess María De La Esperanza Of Bourbon-Two Sicilies's paternal grandfather?
Sentence (from "Princess María de la Esperanza of Bourbon-Two Sicilies"): Maria Esperanza's husband Prince Pedro Gastão of Orléans-Braganza, was one of two claimants to the Brazilian throne, and head of the Petrópolis branch of the Brazilian Imperial House.
Relevant evidence: No