"In the name of the holy and individual Trinity, Father, Son and Holy Spirit. At the advice and request of Alfonso, emperor of Leon, an assembly or synod of bishops was convened at Burgos, on 4 nones of October [October 4], at which Guido, cardinal deacon of the Roman Church and legate of the aposotolic see, presided, and at which there were also present Lord Raymond, archbishop of the See of Toledo..."