Belvoir is a historic house at Crownsville, Anne Arundel County, Maryland.

It is a two-story, T-shaped building, constructed of brick, stone, and wood.

[2] It was the home of the grandmother of Francis Scott Key, who composed the United States' national anthem, Star Spangled Banner.

[3] Archaeological research is being performed on the plantation site to document the lives of slaves during the 18th and 19th centuries.

This article about a Registered Historic Place in Anne Arundel County, Maryland is a stub.