Complex sentence: Following the insurrection he was condemned to death, but was reprieved and deported to Buenos Aires after internment in Frongoch internment camp in Wales along with the other Irish soldiers of the Rising.
Split into simpler sentences: Following the insurrection he was condemned to death but was instead deported to Buenos Aires. Prior to his deportation, he was interned in Frongoch prison in Wales along with the other soldiers of the Rising.