In Alexandre Herculano's Eurico, o Presbítero, Oppas is portrayed as a traitor to his own country, whose troops treacherously went to the conqueror's side, and a close collaborator of the conquerors Musa and Tarik.
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After the defeat of king Roderic at the Battle of Guadalete, according to the Chronicle of 754, the Arabs under Tariq ibn Ziyad marched as far as Toledo, but Oppa, who was staying there, fled the city before they took it.
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(died after 712) was a member of the Visigothic elite in the city of Toledo on the eve of the Muslim conquest of Hispania.