I want to know the answer to the following question:
What year did the Queen and Albert purchase Balmoral Castle?
All the background I'm provided with is that "She did undertake her official government duties, yet chose to remain secluded in her royal residences—Windsor Castle, Osborne House, and the private estate in Scotland that she and Albert had acquired in 1847, Balmoral Castle.". Is that enough to answer the question?
Answer: yes