The Castle Dairy implies a connection to which medieval fortification to the east of the town of Kendal, Cumbria, in northern England?
Kendal Castle Kendal Castle is a medieval fortification to the east of the town of Kendal, Cumbria, in northern England. The castle, which is atop a glacial drumlin, was built in the 12th century as the  Caput baroniae for the Barony of Kendal. By the 15th century, the Parr family owned the castle. Queen Catherine Parr  was once thought to have been born at the castle; however, modern research has shown that it was in great disrepair by the 16th century and she was most likely born in Blackfriars, London.
Twydall Profile The Twydall Profile was a style of fortification used in British and Imperial polygonal forts at the end of the 19th century. The sloping earthworks employed in the Twydall Profile were intended to be quick and inexpensive to construct and to be effective in the face of the more powerful artillery and high explosive ammunition being introduced at that time. The name comes from the village of Twydall in Kent, where the first forts of this type were built.