Question: Who is the paternal grandmother of Catarina, Duchess Of Braganza?
Sentence (from "Catarina, Duchess of Braganza"): She was the second daughter of Infante Edward, 4th Duke of Guimarães (sixth son of Manuel I of Portugal) and Isabella of Braganza, she was married to John, 6th Duke of Braganza, a descendant of earlier Portuguese monarchs, and head of the most important aristocratic House in Portugal.
Relevant evidence: Yes