Generate a correct and concise answer for the question based on the words in the context.
One example: Context : Isaac Nicola Romero (1916 in Havana, Cuba -- 1997) was a prominent Cuban guitarist and one of the founders of the modern Cuban Guitar School.
Question : What was Isaac Nicola's city of birth?
Solution is here: Havana
Explanation: According to context Issac Nicola's city of birth is Havana. Hence this is a correct output.

Now, solve this: Context : Sir Thomas de Brus (c. 1284 -- 9 February 1307) was a younger brother of King Robert I of Scotland, who supported his brother in the struggle for the crown of Scotland.
Question : What year did Thomas de Brus die?
Solution:
9 February 1307