Complex sentence: His eldest son and heir, Francis Aspinall Philips (1793--1859), inherited both his father's estates and though he lived at Bank Hall, spent much time at Abbeycwmhir, becoming High Sheriff of Radnorshire.
Split into simpler sentences: His eldest son and heir, Francis Aspinall Philips (1793--1859), inherited both of his father's estates. Although he lived at Bank Hall, he spent much time at Abbeycwmhir, eventually becoming High Sheriff of Radnorshire.