Boothby or Boothby-Graffoe a parish and wapentake in Lincolnshire, on the Cliff, 1 1/2 mile N of Navenby station on the G.N.R., and 7 1/2 S of Lincoln, which is the post town; money order and telegraph office, Navenby. Acreage of parish, 2086; population, 188. There are remains of Somerton Castle, built in 1281 by Bishop Bee, and used as the prison of King John of France after the battle of Poitiers. A portion of the remains, with some modern additions, form a commodious dwelling-house. Boothby Hall is also a chief residence. The living is a rectory in the diocese of Lincoln; net value, £350 with residence. The church was rebuilt in 1842. The wapentake contains Boothby parish, twenty-five other parishes, and part of another.