Original sentence: Colom is the son of Antonio Colom Argueta and Yolanda Caballeros Ferraté, the first being the older brother of Manuel Colom Argueta, a former mayor of Guatemala City.He is also the father of Antonio Colom Szarata, the bass player of Guatemalan rock band Viento en Contra
Edited sentence: Colom is the son of Antonio Colom Argueta and Yolanda Caballeros Ferraté, the first being the older brother of Manuel Colom Argueta, one of the most significant, if not the most significant, Guatemala City mayors.He is also the father of Antonio Colom Szarata, the bass player of Guatemala´s most famous rock band Viento en Contra