Complex sentence: Descended from the old Scottish Liberal family of the Calders of Ballater in Aberdeenshire, he is also related to the Whig Campbells of Khantore, Crathie, also of Aberdeenshire.
Split into simpler sentences: Descended from the old Scottish Liberal family of the Calders of Ballater in Aberdeenshire. He is also related to the Whig Campbells of Khantore, Crathie, also of Aberdeenshire.