James Martin Pacelli McGuinness (Irish: Séamus Máirtín Pacelli Mag Aonghusa; 23 May 1950 – 21 March 2017) was an Irish republican politician and statesman for Sinn Féin and a leader within the Provisional Irish Republican Army (IRA) during The Troubles. He was the deputy First Minister of Northern Ireland from May 2007 to January 2017.
McGuinness served as the Member of Parliament (MP) for Mid Ulster from 1997 until his resignation in 2013. Like all Sinn Féin MPs, McGuinness followed abstentionism in the Westminster Parliament. Working alongside US Special Envoy George Mitchell, McGuinness was also one of the main architects of the Good Friday Agreement which formally cemented the Northern Ireland peace process and established the Northern Ireland Assembly.
In 1998, McGuinness was first elected as the Member of the Legislative Assembly (MLA) for Mid Ulster. He served as Minister of Education in the Northern Ireland Executive under First Minister David Trimble from 1999 to 2002.