MATSUURA was the fourth son of Keisuke MATSUURA, a goshi (rural) samurai from Sugawamura, Ichishi District, Ise Province (current day Onoecho, Matsusaka City, Mie Prefecture).
伊勢国一志郡須川村（現在の三重県松阪市小野江町）の郷士松浦桂介の四男。