 Complete the following phrase:  In December 1896, he and Ciriaco accompanied their brother Andres and wife Gregoria to Cavite through the invitation of Cavites provincial head of the revolution Mariano Alvarez to mediate between the growing conflict of the two rival factions of the Katipu in the province, that of Magdiwang headed by Alvarez and Magdalo headed by cousins Emilio and Baldomero Aguinaldo. The mediation turned out to be a lost cause for the Bonifacios. Andres Bonifacio who was recognized as the over-all leader of the 