A more thorough explanation:

The Master of the Rolls is the president of the Court of Appeal in England. In the past, this person was responsible for keeping the rolls and chancery records as an assistant judge to a court of chancery.

One of the most well-known Master of the Rolls was Lord Denning, who lived from 1899 to 1999.

Since 1875, the Master of the Rolls has been the president of the Court of Appeal. They used to have the general responsibility for public records until 1958 when it was transferred to the Lord Chancellor. However, they are still responsible for the records of the Chancery of England. They also admit people as solicitors of the Supreme Court.

For example, if someone wants to become a solicitor in the Supreme Court, they would need to be admitted by the Master of the Rolls.

Overall, the Master of the Rolls is an important figure in the English legal system, responsible for overseeing the Court of Appeal and maintaining important legal records.