The Free Socialist Party of Burundi ( French: Parti socialiste libre du Burundi, abbreviated Parsocilibre) was a political party in Burundi. Parsocilibre was founded in March 1961. [1] [2] It was led by Michel Buyoya (former president of UPROHUTU) and Pascal Baranyikwa. [1] [3] The party supported constitutional monarchy. [1] It had its office in Kayanza. [3] [4]