<p>Jack Lynch is one of the most important and perhaps most underrated Irish political leaders of the twentieth century.<br>A sportsman who won six All-Ireland medals in a row with Cork, he was also a civil servant and a barrister before being elected to Dáil Éireann in 1948. During his thirty-one years as a parliamentarian, he held the ministries of Education, Industry and Commerce, and Finance before succeeding Seán Lemass as Taoiseach in 1966....