Joannes d'Etchalecuto, son of Joannes d'Etchalecuto and Dominique de Cubiat, owners of the borde of Etchalecuto of St. Etienne in the quartier of Iparraguerre.
His godparents were Joannes, inheritor of Abinto in the Aldudes, paternal uncle and Marie de Souhilar.