Question: Diarmuid Whelan wrote his doctoral thesis on the Irish politician whose opinion on the role of Britain in Ireland changed after what event?
Sentence (from "Pál Schmitt academic misconduct controversy"): The Pál Schmitt academic misconduct scandal refers to allegations of plagiarism concerning the 1992 doctoral thesis and the circumstances of the doctoral defence of the President of Hungary Pál Schmitt, which led to Schmitt's resignation from his presidential post.
Relevant evidence: No