Instructions: Generate a correct and concise answer for the question based on the words in the context.
Input: Context : Kujava Radinovic was the second wife of King Stephen Ostoja of Bosnia and as such she was Queen of Bosnia from 1399 to 1404 and again from 1409 to 1415.
Question : What is Kujava Radinovic's spouse's name?
Output:
Stephen Ostoja of Bosnia