Note 346 — Chapter XI · MILITARY ARCHITECTURE IN THE LATER MIDDLE AGES: FORTIFIED TOWNS AND CASTLES
Reading edition
The licence to Thomas de Heton to “make a castle or fortalice” of Chillingham bears date 27th January 1343-4 (Pat. 18 Edw. III., pt. 1, m. 46). Some of the masonry in the angle-towers is, however, of a much earlier date than this.