The 754 chronicler blamed Rodrigo’s treacherous army for Spain’s loss

Evidence

Rodrigo met them in a pitched battle and “the entire army of the Goths, which had come with him fraudulently and in rivalry out of ambition for the kingship, fled and he was killed. Thus Rodrigo wretchedly lost not only his rule but his homeland.” The evils that befell Spain seem to be due to the political treachery of Rodrigo. — John V. Tolan, Saracens, 473