We do not know whether Jews in Sefarad 1 spoke or wrote Basque

Abstract

Whereas no one doubts the presence of Jews on Basque-speaking territory before 1492, we have no evidence about what language or language or languages they spoke. José Ramón Magdalena Nom de Déu doubts that any spoke Baske. However, since lack of evidence is different from negative evidence, the author of the present note prefers to leave that question open by saying “we do not know”