Question:  Rafaela Ybarra de Vilallonga was the founder of the Sister of the Holy Guardian Angels in what city that is the largest in the province of Biscay and in the Basque Country as a whole?
Sentence (from "Rafaela Ybarra de Vilallonga"): Blessed Rafaela Ybarra Arambarri de Vilallonga (16 January 1843 – 23 February 1900) was a Spanish Roman Catholic widow and the founder of the Sisters of the Holy Guardian Angels.
Relevant evidence: Yes