Complex sentence: Joaquim António de Aguiar (Coimbra, August 24,1792-Lisbon, May 26,1884) was a Portuguese politician from during the constitutional monarchy and an important leader of the Cartists and later of the "Partido Regenerador" (English: Regenerator Party).
Split into simpler sentences: Joaquim António de Aguiar (Coimbra, August 24,1792-Lisbon, May 26,1884) was a Portuguese politician. He held several relevant political posts during the Portuguese constitutional monarchy, namely as leader of the Cartists and later of the "Partido Regenerador" (English: Regenerator Party).