Who was the wife of the king of England the mother of a queen of England and end of the empire of the holy Roman empire

Catherine of Aragon was the wife of the king of England, the mother of a queen of England, and aunt of the emperor of the Holy Roman empire.

Explanation:

Catherine of Aragon was an Aragonese princess born to Ferdinand II of Aragon and Isabella I of Castile. At the age of 16, she was married to the Welsh Prince Arthur who died in five months of their marriage. Later she married Henry VII, who was the younger brother of Arthur. Catherine had played an important role in the Battle of Flodden and is remembered for the speech that she had given after England's victory.