Though the list of confirmants seems to demonstrate the document's authenticity, the three confirming bishops—Sisebutus, Atus, and Vincentus—were not all in power in 981, but correspond perfectly with a date of 991, in which year, on 15 February, Sancho and Urraca made a similar donation of Ramiro's former possessions in Navardún to the monastery of Leyre.