Note 1579 — Chapter XI · THE LAST YEARS OF ARCHBISHOP THEOBALD. 1156–1161.
Reading edition
From the Prologue to the Polycraticus, l. i. (Joh. Salisb. Opp., Giles, vol. iii. p. 13), it appears that at the time of writing it John had been twelve years at the court. As the Polycraticus was written during the war of Toulouse, this takes us back to 1148. He must in fact have joined Theobald very soon after the council of Reims.