Question: Charles Howard was a gentleman at the court of the second what?

Context paragraphs:
Matthew Howard-Gibbon: Matthew Charles Howard-Gibbon (13 November 1796 – 16 December 1873) was a long-serving officer of arms at the College of Arms in London.  He was born Matthew Charles Howard Gibbon in London, and was the oldest son of Charles Howard, 11th Duke of Norfolk and Mary Ann Gibbon–his long-time mistress and purportedly his third wife.  Matthew was married to Charlotte Blackman in 1822, and they originally lived on a small estate in Yapton, but were not known to have had any children.  Matthew received his hyphenated surname and family coat of arms in 1842 by Royal Licence obtained by his brother, Edward Howard-Gibbon, with consent of the 13th Duke of Norfolk.

Henry VIII of England: Henry VIII (28 June 1491 – 28 January 1547) was King of England from 21 April 1509 until his death.  Henry was the second Tudor monarch, succeeding his father, Henry VII.

Charles Howard (courtier): Charles Howard was a gentleman at the court of Henry VIII of England.  He was the second son of Lord Edmund Howard and the elder brother of Sir George Howard.  As a scion of the mighty Howard family, his uncle, Thomas Howard, 3rd Duke of Norfolk was able to find him a position at court.  Charles' fortunes improved in 1540, when his sister, Catherine Howard became the King's fifth wife.  Charles went on to create a mesalliance with the King's niece, Margaret Douglas, the daughter of Henry's sister, Margaret Tudor, queen dowager of Scotland.

Charles Howard, 3rd Earl of Nottingham: Charles Howard, 3rd Earl of Nottingham (25 December 1610 – 26 April 1681) was the son of Charles Howard, 1st Earl of Nottingham by his second wife, the former Margaret Stuart.  He studied at the University of Oxford, where he had a reputation for exceptional wildness, and he damaged his prospects by an impulsive love marriage to a barrister's daughter, a marriage which both families disapproved of equally.

Charles Howard, 2nd Earl of Nottingham: Charles Howard, 2nd Earl of Nottingham (17 September 1579 – 3 October 1642) was the son of Charles Howard, 1st Earl of Nottingham.  His mother was the former Katherine Carey.  From 1615 to 1624 he was styled Lord Howard of Effingham.

Charles Howard, 11th Duke of Norfolk: Charles Howard, 11th Duke of Norfolk (15 March 1746 – 16 December 1815), styled Earl of Surrey from 1777 to 1786, was a British nobleman, peer, and politician.  He was the son of Charles Howard, 10th Duke of Norfolk and Catherine Brockholes.

Charles Howard (police officer): Sir Andrew Charles Howard KCB (1833 – 11 June 1909), known as Sir Charles Howard, was the third Assistant Commissioner (Executive) of the London Metropolitan Police, serving in the post from 1890 to 1902.  He was the first career police officer to be appointed an Assistant Commissioner.

Gordon Howard, 5th Earl of Effingham: Gordon Frederick Henry Charles Howard, 5th Earl of Effingham (18 May 1873 – 7 July 1946) was an English peer and member of the House of Lords.  The son of Hon. Frederick Charles Howard and grandson of Henry Howard, 2nd Earl of Effingham, he inherited the earldom in 1927 from his cousin, Henry Howard, 4th Earl of Effingham.

Charles Howard, 9th Earl of Suffolk: Charles Howard, 9th Earl of Suffolk (1685 – 28 September 1733) was an English nobleman and politician, styled Hon. Charles Howard from 1691 to 1731.

Charles Howard, 10th Duke of Norfolk: Charles Howard, 10th Duke of Norfolk, Earl Marshal (1 December 1720 – 31 August 1786), was an English peer and politician.  He was the son of Henry Charles Howard (c. 1668–1720) and Mary Aylward (c. 1670–1747).  He married Catherine Brockholes (before 1724–1784), daughter of John Brockholes, on 8 November 1739.  He succeeded to the title of Duke of Norfolk in 1777 after the death of Edward Howard, 9th Duke of Norfolk.  Charles Howard, 10th Duke of Norfolk died on 31 August 1786 at age 65.  He was succeeded by his son, Charles Howard, 11th Duke of Norfolk.

Supporting paragraphs: Charles Howard (courtier) Henry VIII of England
Answer: Tudor monarch