Complex sentence: Paz then participated in the defeats at the battles of Vilcapugio, Ayohuma, and in Venta y Media in which his arm was wounded and crippled; hence he became known as the "One-arm Paz" ("El Manco Paz").
Split into simpler sentences: Paz then participated of the defeats at the battles of Vilcapugio, Ayohuma, and in Venta y Media in which his arm was wounded, what left him a crippled member. Because of that he became known as the "One-arm Paz" ("El Manco Paz").