Mariano Trías y Closas (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 this Aguinaldo administration, Trias served in the cabinet as the Minister of War and Finance.