Complex sentence: Thomas Tennison (1707-27 March 1779) was an Irish politician and judge: he served as Prime Serjeant and as a judge of the Court of Common Pleas (Ireland) and sat in the Irish House of Commons as member for Dunleer.
Split into simpler sentences: Thomas Tennison (1707-27 March 1779) was an Irish politician and judge: he served as Prime Serjeant and as a judge of the Court of Common Pleas (Ireland). He also sat in the Irish House of Commons as member for Dunleer.