Note 80 — Chapter I · ARCHBISHOP THOMAS. 1162–1164.
Reading edition
Ib.·/·R. Diceto (Stubbs), vol. i. pp. 311, 312. Will. Fitz-Steph. as above·/·(Robertson, Becket, vol. iii.), p. 43. The object of this rule—one of the avitæ consuetudines—was, as R. Diceto explains, to guard the king against the risk of unwittingly associating with excommunicates.