What did the term Grantham refer to?

The term "Grantham" typically refers to a town in Lincolnshire, England, known for its historical significance and architectural landmarks, such as St. Wulfram's Church. It is also associated with notable figures, including former British Prime Minister Margaret Thatcher, who was born there. Additionally, Grantham might refer to various places or institutions named after the town, as well as to a notable historical school or educational institution located in the area.