Context: After the grant of the royal charter it had become known as the Royal Institute of British Architects in London, eventually dropping the reference to London in 1892. In 1934, it moved to its current headquarters on Portland Place, with the building being opened by King George V and Queen Mary.

Question: What caused the change of the Institute's name?
Answer: the grant of the royal charter

Question: What was removed from the Royal Institute's name?
Answer: the reference to London

Question: When was the mention of London removed from the Royal Institute's name?
Answer: 1892

Question: Where is the Royal Institute of British Architects located?
Answer: Portland Place

Question: Who opened the structure in which the Royal Institute is currently housed?
Answer: King George V and Queen Mary

Question: What caused the Institute's name to not change?
Answer: Unanswerable

Question: What was added to the Royal Institute's name?
Answer: Unanswerable

Question: When was the mention of London included in the Royal Institute's name?
Answer: Unanswerable

Question: Who opened the structure in which the Royal Institute is formerly housed?
Answer: Unanswerable