Question: Who was the secretary to the Winter Queen?

Context:
Donald C. Winter
Donald Charles Winter (born June 15, 1948) is an American businessman who served as United States Secretary of the Navy.
 A former top executive of TRW, Aerospace & Defense, he was nominated in 2005 by President George W. Bush, confirmed by the United States Senate, and took the oath of office on January 3, 2006.
 In January 2009 Defense Secretary Gates requested that Winter remain in office until President Obama picked his successor on March 13, 2009.
 He resigned on March 13.
Elizabeth Stuart, Queen of Bohemia
Elizabeth Stuart (19 August 1596 – 13 February 1662) was Electress of the Palatinate and briefly Queen of Bohemia as the wife of Frederick V of the Palatinate.
 Due to her husband’s reign in Bohemia lasting for just one winter, Elizabeth is often referred to as The Winter Queen.
Kohmi Hirose
Kohmi Hirose (広瀬 香美 , Hirose Kōmi , born April 12, 1966) is a Japanese pop singer and songwriter.
 Since the release of her million-selling single "Romance no Kamisama" in 1993, Hirose has recorded music for winter-sporting goods company Alpen's advertising campaigns.
 This has prompted the Japanese public to bestowed upon her the nickname of "Winter Queen" (冬の女王 , Fuyu no Joō ) .
Francis Nethersole
Sir Francis Nethersole (1587–1659) was an English diplomat, secretary to the Electress Elizabeth, Member of Parliament for Corfe Castle, Dorset, and a Civil War political pamphleteer.
The Winter Queen (novel)
The Winter Queen (Russian: Азазель, Azazel) is the first novel from the Erast Fandorin series of historical detective novels, written by Russian author Boris Akunin.
 It was subtitled "конспирологический детектив" ("conspiracy mystery").
Jane Stevenson
Jane Stevenson (born 1959) is a British author who was born in London and brought up in London, Beijing and Bonn.
 She has lectured in history at Sheffield University, and teaches literature and history at the University of Aberdeen, where she is the Regius Professor of Humanity.
 Her fiction books include "Several Deceptions" and "Good Women", collections of novellas; a novel, "London Bridges"; and the historical trilogy made up of the novels "The Winter Queen", "The Shadow King", and "The Empress of the Last Days".
 Stevenson lives in Aberdeenshire, Scotland.
James Callaghan
Leonard James Callaghan, Baron Callaghan of Cardiff, {'1': ", '2': ", '3': ", '4': "} (27 March 1912 – 26 March 2005), often known as Jim Callaghan, was a British politician who served as Prime Minister of the United Kingdom from 1976 to 1979 and Leader of the Labour Party from 1976 to 1980.
 Callaghan is to date, the only British politician in history to have served in all four of the "Great Offices of State", having been Chancellor of the Exchequer from 1964–67, Home Secretary from 1967-70, and Foreign Secretary from 1974, until his appointment as Prime Minister in 1976.
 As Prime Minister, he had some successes, but is mainly remembered for the "Winter of Discontent" of 1978–79.
 During a very cold winter, his battle with trade unions led to massive strikes that seriously inconvenienced the public, leading to his defeat in the polls by Conservative leader Margaret Thatcher.
Lucas Ng
Lucas Ng Jun Jie (born 13 October 1988) is a Singaporean short track speed skater.
 He became the first Singaporean athlete to compete at a major winter sport event at the 2011 Asian Winter Games.
 His participation drew praise from parliamentary secretary Teo Ser Luck who said "We should just celebrate the fact that Singapore has its first winter athlete.
 We've never had a winter athlete and this in itself is a breakthrough."
 In August 2017, Ng suffered a serious injury due to a training accident in which a tendon in his right hand was severed by the blade of a skater who fell down in front of him.
 He underwent surgery requiring ten stitches, but ten days later had recovered sufficiently from his injuries to win the silver medal in the men's 1000 metres in short track speed skating at the 2017 Southeast Asian Games.
Azazel (film)
Azazel (2002) (Russian: Азазель ) is a Russian made for TV adaptation of Boris Akunin's introductory 'Erast Fandorin' novel "The Winter Queen".
Canadian Secretary to the Queen
The Canadian Secretary to the Queen (French: "Secrétaire canadien de la Reine" ) is the senior operational member of the Royal Household of Elizabeth II, Queen of Canada.
 It is the principal channel of communication between the monarch and her Canadian government, provincial governments, and the governments of the 15 other Commonwealth realms, as well as managing the monarch's other correspondence in the Canadian context and drafting speeches the Queen delivera in Canada or on Canadian topics.
 The secretary is responsible for advising the prime minister "on matters related to the Canadian Crown, including providing advice on the Government of Canada's heritage-related commemorative initiatives, high level coordination of Royal Tours to Canada, and state ceremonial and protocol advisory functions."
 Additionally, the secretary chairs, "ex-officio", the Advisory Committee on Vice-Regal Appointments and holds responsibility for the official programme of tours of Canada by members of the Royal Family.

Answer: Sir Francis Nethersole