Question: Who is Victoria De Marichalar Y Borbón's maternal grandmother?
Sentence (from "Victoria de Marichalar y Borbón"): "Doña" Victoria Federica de Todos los Santos de Marichalar y Borbón (born 9 September 2000) is the younger child and only daughter of the Spanish Infanta Elena, Duchess of Lugo, and "Don" Jaime de Marichalar. "
Relevant evidence: Yes