Former cabinet secretary Simon Case is to be given a life peerage by the King.
Case, who departed in December due to ill health, is one of four nominees who are set to join the House of Lords as crossbench peers.
The other nominees that the King has signified his intention to confer peerages upon include Sir Tim Barrow, who was recently the UK national security adviser, and ex-Treasury second permanent secretary Dame Sharon White.
Former Olympian Dame Katherine Grainger is the other nominee.
Case left the civil service last year after four years as cab sec and head of the civil service, having joined in September 2020 and served four prime ministers.
His nomination also mentions his past civil service roles as perm sec at No.10; principal private secretary to the prime minister; and director general for Northern Ireland and director general for the UK-EU relationship, both at the Department for Exiting the European Union.
His other previous roles include director of strategy at GCHQ and private secretary to Prince William.
Since leaving government, Case has been appointed as the independent chair of the Barrow Delivery Board, which manages a £200m government fund to “deepen and develop“ the Cumbrian town's “crucial role at the heart of UK national security and nuclear submarine-building”.
He is also a non-executive director at the Ministry of Defence.
Barrow served as national security adviser from September 2022 to November 2024 and held a series of Foreign Office roles before that, including second permanent secretary and political director. He began his career at the Foreign and Commonwealth Office in 1986 as a desk officer and went on to hold a series of key ambassador roles, including permanent representative of the UK to the EU and British Ambassador to the EU.
White was the first black person and second woman to become a permanent secretary at the Treasury, serving as second perm sec between 2013 and 2015, after which she was chief executive of Ofcom from 2015 to November.
She joined the civil service in 1998, working at the Treasury, the British Embassy in Washington, the No.10 Policy Unit and the World Bank, before holding director general roles in the Department for International Development, Ministry of Justice, Department for Work and Pensions and HMT.
White is now managing director and head of Europe for Caisse de dépôt et placement du Québec (the Quebec Deposition and Investment Fund), and was previously chair of the John Lewis Partnership from February 2020 until September 2024.