Complex sentence: Smythe amassed a large fortune, a considerable part of which he devoted to charitable purposes, and, among others, to the endowment of the free school of Tonbridge, which was originally founded by his grandfather, Sir Andrew Judd.
Split into simpler sentences: Smythe amassed a large fortune, a considerable part of which he devoted to charitable purposes. He endowed the free school of Tonbridge, which was originally founded by his grandfather, Sir Andrew Judd.