Question: Which significant Sinn Féin politician attended the Dr. McKenna Cup?
Sentence (from "Martin McGuinness"): James Martin Pacelli McGuinness (Irish: "Séamus Máirtín Pacelli Mag Aonghusa" ; 23 May 1950 – 21 March 2017) was an Irish republican and Sinn Féin politician who was the deputy First Minister of Northern Ireland from May 2007 to January 2017.
Relevant evidence: Yes