Complex sentence: FitzGerald sat as a Member of Parliament (MP) in the Irish House of Commons for Kildare County from 1776 to 1790, for Cavan Borough from 1790 to 1798 and for Ardfert from 1798 to the Act of Union in 1801.
Split into simpler sentences: FitzGerald sat as a Member of Parliament (MP) in the Irish House of Commons for Kildare County from 1776 to 1790. He represented then Cavan Borough from 1790 to 1798 and subsequently Ardfert from 1798 to the Act of Union in 1801.