Combine facts and answer this: The River Dee flows through Wales and what village in England?
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Answer: Farndon is a village


Combine facts and answer this: Which American weekly business magazine labeled Potomac () as twenty-ninth richest zip code in the United States in 2011?
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Answer: Bloomberg Businessweek


Combine facts and answer this: In what year did Henry I of Castile's grandather sign a peace treaty guaranteeing his successorship to the throne of England?
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Answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
1153