Question: What is the date of death of Infanta Antónia Of Portugal's mother?
Sentence (from "Maria II of Portugal"): "Dona" Maria II (4 April 1819 – 15 November 1853) "the Educator"  or "the Good Mother" , reigned as Queen of Portugal from 1826 to 1828, and again from 1834 to 1853.
Relevant evidence: Yes