Lord Kerr's departure from the judiciary is also notable because he was the last appointment as a Lord of Appeal in Ordinary - the "Law Lords" who, until October 2009, sat in the former Appellate Committee of the House of Lords.
Lord Kerr was called to the Bar of Northern Ireland in 1970 and to the Bar of England and Wales in 1974. He was appointed Queen's Counsel in 1983 and to the High Court of Northern Ireland in 1993. He became Lord Chief Justice of Northern Ireland in 2004.
Update 1 December 2020:
Supreme Court of the UK - Tribute to Lord Kerr whose death was announced today.