Complex sentence: Amador was grandson of Esteban Royz d'Alpoim and Grimanesa Pires daughter of Pedro Vaz Marinheiro, and descendant of Lopo de Alpoim and N Pinheiro, daughter of Alcalde Álvaro Pires Pinheiro Lobo.
Split into simpler sentences: Amador was grandson of Esteban Royz d'Alpoim and Grimanesa Pires daughter of Pedro Vaz Marinheiro. And descendant of Lopo de Alpoim and N Pinheiro, daughter of Alcalde Álvaro Pires Pinheiro Lobo.