Mariano Trías y Closas (Spanish: [ˈmaˈɾjano ˈtɾiˈas] : October 12, 1868 – February 22, 1914) is considered to be the first de facto Philippine Vice President of that revolutionary government established at the Tejeros Convention - an assembly of Philippine revolutionary leaders that elected officials of the revolutionary movement against the colonial government of Spain. When that assembly broke into factions, a truce known as the Pact of Biak-na-Bato was signed by the group and also recognized the elected officials and Trias as the vice president of Emilio Aguinaldo, who is also considered to be the first President of the Philippines. With the promulgation of the Malolos Constitution by the Malolos Convention, the First Philippine Republic was born. Under the Aguinaldo administration, Tri