 According to one source, he took advantage of his position by procuring arms designed specifically for the requetés; according to another, starting late 1936 he assisted in organization of Terç de Requetès de la Mare de Déu de Montserrat, the requeté battalion consisting of Carlist refugees from Catalonia.On the other hand, he is not known to have protested against Franco's measures against Manuel Fal; even detailed studies dealing with amalgamation of Carlism within Francoism in 1936-7 do not mention Bau, which suggests that at that time he was already hardly involved in Traditionalism.It seems that he unconditionally accepted Unification Decree and was leading Catalan Carlists co-operating with Franco; some scholars compare the role he played in Catalonia to the role played by Tomás Domínguez Arévalo in Vasco-Navarrese area.