Question: What position was held by the author of A Dialogue of Comfort against Tribulation with respect to Henry VIII?

Context paragraphs:
Henry VIII (play): Henry VIII is a collaborative history play, written by William Shakespeare and John Fletcher, based on the life of King Henry VIII of England.  An alternative title, All Is True, is recorded in contemporary documents, the title Henry VIII not appearing until the play's publication in the First Folio of 1623.  Stylistic evidence indicates that individual scenes were written by either Shakespeare or his collaborator and successor, John Fletcher.  It is also somewhat characteristic of the late romances in its structure.  It is noted for having more stage directions than any of Shakespeare's other plays.

Will of Henry VIII of England: The will of Henry VIII of England was a significant constitutional document, or set of contested documents created in the 1530s and 1540s, and affecting English and Scottish politics for the rest of the 16th century.  In conjunction with legislation passed by the English Parliament, it was supposed to have a regulative effect in deciding the succession to the three following monarchs of the House of Tudor, the three legitimate and illegitimate children, (the Third Succession Act expressly recognised the illegitimacy of Henry's daughters) of King Henry VIII of England.  Its actual legal and constitutional status was much debated; and arguably the succession to Elizabeth I did not respect Henry's wishes.

A Dialogue of Comfort against Tribulation: A Dialogue of Comfort against Tribulation is a work that was written by St. Thomas More while imprisoned in the Tower of London in 1534.

Lady Jane Seymour: Lady Jane Seymour (c.1541 – 19 March 1561) was an influential writer during the sixteenth century in England, along with her sisters, Lady Margaret Seymour and Anne Seymour, Countess of Warwick.  Their brother was Edward Seymour, 1st Earl of Hertford.  They were the children of Edward Seymour, 1st Duke of Somerset, who from 1547 was the Lord Protector of England after the death of King Henry VIII and during the minority of Jane's first cousin, King Edward VI.  She was baptised 22 February 1541, and her godparents were Thomas Cromwell (the King's chief minister), Lady Mary (the King's daughter, at the time declared illegitimate but later to become queen) and Katherine Howard, the fifth wife of Henry VIII, and queen at the time.  Jane was thus the niece of Henry VIII's third wife, Queen Jane, whom she was probably named after.  She was the sole witness to the secret marriage of her brother Edward to Lady Catherine Grey (a potential heir to Queen Elizabeth I) in 1560.  She died a year later, aged 20, probably of tuberculosis.

Sir George Howard (courtier): Sir George Howard (c.1525–1580) was an English courtier, politician, author and diplomat, and the brother of King Henry VIII's fifth queen, Catherine Howard.  Howard held offices at court under four monarchs, Henry VIII, Edward VI, Mary I, and Elizabeth I, most notably the office of Master of the Armoury, and undertook several diplomatic missions.  A masque written by Howard was produced at court during the reign of Edward VI, and he is mentioned by name in the Langham letter, which describes the Earl of Leicester's entertainment of Queen Elizabeth at Kenilworth Castle in July 1575.

Grimston Manor: Grimston Manor was a manor house in Norfolk, England.  In 1524, it was given to George Boleyn, the first grant King Henry VIII made to Boleyn.  It is assumed that this was given on the wedding of George to Jane Parker.  Henry VIII was around this time involved in a relationship with George's sister, Mary, and within two years would be pursuing George's other sister, Anne, who became Henry VIII's second wife.

Henry VIII and His Six Wives: Henry VIII and His Six Wives is a 1972 British film adaptation, directed by Waris Hussein, of the BBC 1970 six-part miniseries "The Six Wives of Henry VIII".  Keith Michell, who plays Henry VIII in the TV series, also portrays the king in the film.  His six wives are portrayed by different actresses, among them Charlotte Rampling as Anne Boleyn, and Jane Asher as Jane Seymour.  Donald Pleasence portrays Thomas Cromwell and Bernard Hepton portrays Archbishop Thomas Cranmer, a role he had also played in the miniseries and briefly in its follow-up "Elizabeth R".

Elizabeth Cheney (1422–1473): Elizabeth Cheney (April 1422 – 25 September 1473) was a member of the English gentry, who, by dint of her two marriages, was the great-grandmother of Anne Boleyn, Jane Seymour, and Catherine Howard, three of the wives of King Henry VIII of England, thus making her great-great-grandmother to King Edward VI, the son of Henry VIII and Jane Seymour, and Elizabeth I, the daughter of Henry VIII and Anne Boleyn.  Her first husband was Sir Frederick Tilney, and her second husband was Sir John Say, Speaker of the House of Commons.  She produced a total of eight children from both marriages.

Thomas More: Sir Thomas More ( ; 7 February 14786 July 1535), venerated by Roman Catholics as Saint Thomas More, was an English lawyer, social philosopher, author, statesman and noted Renaissance humanist.  He was also a councillor to Henry VIII, and Lord High Chancellor of England from October 1529 to 16 May 1532.  He wrote "Utopia", published in 1516, about the political system of an imaginary ideal island nation.

Frederick Tilney: Sir Frederick Tilney (died 1445) Lord of Ashwellthorpe, Norfolk, and Boston, Lincolnshire, England, was the husband of Elizabeth Cheney, Lady Say and father of Elizabeth Tilney, Countess of Surrey.  He is a great-grandfather of Anne Boleyn, Jane Seymour, and Catherine Howard, three of the wives of King Henry VIII of England, and a great-great-grandfather to King Edward VI, the son of Henry VIII and Jane Seymour, and Queen Elizabeth I, the daughter of Henry VIII and Anne Boleyn.

Supporting paragraphs: A Dialogue of Comfort against Tribulation Thomas More
Answer: a councillor