Question: What is the date of death of Infanta Antónia Of Portugal's mother?
Sentence (from "Infanta Antónia of Portugal"): Silvéria Júlia Augusta de Saxe-Coburgo e Bragança"; 17 February 1845 – 27 December 1913) was a Portuguese "infanta" (princess) of the House of Braganza, daughter of Queen Maria II of Portugal and her King consort Ferdinand II of Portugal.
Relevant evidence: Yes