Former First Minister of Wales Carwyn Jones will receive a peerage

A Labor politician, Mr Brennan was an MP from 2001 until he stood down at this year’s election.

He served as whip and held three different ministerial posts under two Labor prime ministers, Tony Blair and Gordon Brown.

Former MEP, MP and Wales Office Minister Sir Wayne David will succeed Mr Brennan as Chief Special Adviser to the First Minister in the new year.

First Minister Eluned Morgan thanked Mr Brennan for his work, saying: “I know he will continue to serve the interests of Wales in his new role.”