Generate a correct and concise answer for the question based on the words in the context.

Context : Mamochisane (fl. 1850s) was a Makololo Queen who ruled over many people, but especially the Lozi in Barotseland, today's Western Zambia, and was a wife of King Sipopa Lutangu. 
Question : What is Mamochisane's spouse's name?
Sipopa Lutangu

Context : Master of the View of Ste-Gudule (active 1480 -- 1499), was an Early Netherlandish painter. 
Question : When was Master of the View of Ste-Gudule's death?
1499

Context : Fritz X was first deployed on 21 July 1943 in a raid on Augusta harbour in Sicily. 
Question : What year was Fritz X introduced?

1943