Complex sentence: In 1814 he participated in the interim governing board of Cuzco, in the insurgence of the Brigadier Mateo Garcia Pumacahua and the Angulo brothers, nevertheless he was soon harassed because of his aristocratic origin and left the movement.
Split into simpler sentences: In 1814 he participated in the interim governing board of Cuzco, in the insurgence of the Brigadier Mateo Garcia Pumacahua and the Angulo brothers. But, he was soon harassed because of his aristocratic origin and left the movement.