Isidore of Seville, Historia de regibus Gothorum, Vandalorum et Suevorum, chapter 41. Translation by Guido Donini and Gordon B. Ford, Isidore of Seville's History of the Goths, Vandals, and Suevi, second revised edition (Leiden: E. J. Brill, 1970), pp. 19f
Isidore of Seville, chapter 42; translated by Donini and Ford, p. 20. However, in a footnote to his translation of Isidore's Historia (Conquerors and Chroniclers of Early Medieval Spain, second edition [Liverpool: University Press, 1999], p. 98 n. 106) Kenneth Baxter Wolf identifies this meeting with the Second Council of Toledo, implying that Isidore misdated this Council.