Generate a correct and concise answer for the question based on the words in the context.
Q: Context : Barbara Radziwi (Belarusian: , Lithuanian: Barbora Radvilaite, Polish: Barbara Radziwiowna; 6 December 1520/23 -- 8 May 1551) was Queen of Poland and Grand Duchess of Lithuania as consort of Sigismund II Augustus, the last male monarch of the Jagiellon dynasty.
Question : What is Barbara Radziwi's spouse's name?
A:
Sigismund II Augustus