Question: When was Sir Richard Byron's grandson knighted?
Context: The office of Lord Mayor of Liverpool has existed in one form or another since the foundation of Liverpool as a borough by the Royal Charter of King John in 1207, simply being referred to as the Mayor of Liverpool.  The current Lord Mayor of Liverpool is the Right Worshipful Councillor Malcolm Kennedy who has held the post since May 2017.  The most prominent Mayors were the Stanleys of Knowsley, of which Sir Thomas Stanley (son of the 3rd Earl) and the 4th, 5th, 6th, 7th, 8th, 9th, 10th, 16th and 18th Earls of Derby have held this office since ancient times.  The Molyneuxs of Sefton have also held this office on numerous occasions over the centuries: Sir Richard Molyneux, his grandson Sir Richard Molyneux Baronet, the 1st Viscount Molyneux and the 7th Earl of Sefton. Sir John Byron (1562-1623) was an English nobleman, politician, knight, and Member of Parliament for Nottinghamshire in 1597.  He was the son of Sir John Byron (died 1600).  He had one daughter and ten sons, including some Cavalier commanders in the English Civil War: John Byron, 1st Baron Byron, Richard Byron, 2nd Baron Byron, Sir Robert Byron, Sir Philip Byron, and Sir Thomas Byron. Baron Wolverton, of Wolverton in the County of Buckingham, is a title in the Peerage of the United Kingdom.  It was created in 1869 for the banker George Glyn.  He was the fourth son of Sir Richard Carr Glyn, 1st Baronet, of Gaunt's House, Lord Mayor of London in 1798, himself the fourth son of Sir Richard Glyn, 1st Baronet, of Ewell, Lord Mayor of London in 1758.  Lord Wolverton was succeeded by the eldest of his nine sons, the second Baron.  He was a Liberal politician and served under William Ewart Gladstone as Paymaster-General and as Postmaster General.  He was childless and was succeeded by his nephew, the third Baron.  He was the eldest son of Vice-Admiral the Hon. Henry Carr Glyn, younger son of the first Baron.  He died childless the following year aged only twenty-six, and was succeeded by his younger brother, the fourth Baron.  He served as Vice-Chamberlain of the Household from 1902 to 1905 in the Conservative administration of Arthur Balfour.  On the death in 1988 of his second but eldest surviving son, the fifth Baron, this line of the family failed.  The title was inherited by the late Baron's second cousin, the sixth Baron.  He was the grandson of the Hon. Pascoe Glyn, younger son of the first Baron.  s of 2011 the title is held by his grandson, the eighth Baron, who succeeded in 2011.  As a descendant of both the first Glyn Baronet of Gaunt's House and of the first Glyn Baronet of Ewell, he is also in remainder to these titles. Sir Nicolas Byron (1416-1503) was an English nobleman, politician, and knight.  He was the younger son of Sir John Byron (died 1450).  He was created a Knight of the Bath by Arthur, Prince of Wales on the occasion of Prince Arthur's marriage on 14 November 1501. The Mausoleum of Sir Richard and Lady Burton is a Grade II* listed tent-shaped mausoleum of Carrara marble and Forest of Dean stone in the churchyard of St Mary Magdalen Roman Catholic Church Mortlake in the London Borough of Richmond upon Thames.  It contains the tombs of the Victorian explorer Sir Richard Burton (1821–90), who took part in the search for the source of the River Nile and translated "The Arabian Nights", and his wife Isabel, Lady Burton (1831–96), who designed it.  The coffins of Sir Richard and Lady Burton can be seen through a glass panel at the rear of the tent, which can be accessed via a short fixed ladder.  The inscription includes a commemorative sonnet by Justin Huntly McCarthy (1859–1936), who lived in Putney. Sir John Byron (1386–1450) was an English landowner, nobleman, politician, and knight.  He had estates in Clayton near Manchester and at South Stoke (now Stoke Rochford) in Lincolnshire.  He was Member of Parliament for Lancashire in 1421 and 1429, and for Lincolnshire in 1447.  He was the son and heir of Sir Richard Byron (1354-1415), He married Margery Booth, daughter of John Booth.  His son Sir Nicolas Byron inherited his estates. Sir Richard Gipps (1659 – 21 December 1708) of Great Whelnetham, Suffolk, was Master of the Revels at Gray's Inn and a historian of the county of Suffolk.  His portrait painted by John Closterman, was engraved in mezzotint by John Smith.  Care should be taken to distinguish him from Sir Richard Gipps of Horningsheth, a contemporary, neighbour, and distant relative, who was knighted by Charles II at Saxham, Suffolk, on 20 October 1676. The Betenson Baronetcy, of Wimbledon in the County of Surrey, was a title in the Baronetage of England.  It was created on 7 February 1663 for Sir Richard Betenson.  He had been knighted in 1624 and served as High Sheriff of Surrey in 1645.  In 1678 and 1679 he was High Sheriff of Kent at which time his seat was at Scadbury Manor, near Chislehurst, Kent.  The second Baronet was his grandson Edward, High Sheriff of Kent in 1705.  He was succeeded by his cousin Edward, (also a grandson of the first Baronet) whose seat was at Bradburn Place, Sevenoaks, Kent.  His son Richard, succeeded as fourth Baronet but died without issue in 1786 when the baronetcy became extinct. Viscount Wenman, of Tuam in the County of Galway, was a title in the Peerage of Ireland.  It was created on 30 July 1628 for Sir Richard Wenman, Member of Parliament for Oxfordshire in 1620 and 1625.  He was made Baron Wenman, of Kilmaynham in the County of Meath, at the same time, also in the Peerage of Ireland.  He was succeeded by his son, the second Viscount.  He represented Brackley and Oxfordshire in Parliament.  On his death the titles passed to his younger brother, the third Viscount.  After the death of his childless only son, he obtained a new patent in 1683, with remainder to his great-nephew, Sir Richard Wenman, 2nd Baronet, with the precedence of 1628.  The latter succeeded as fourth Viscount according to the new patent in 1686.  He had earlier represented Brackley in Parliament.  His grandson, the sixth Viscount, represented Oxford in the House of Commons.  On the latter's death the titles passed to his son, the seventh Viscount.  He sat as Member of Parliament for Oxfordshire for many years.  The titles became extinct on his death in 1800.  As all the peerage titles were in the Peerage of Ireland, the Viscounts did not have the right to sit in the British House of Lords. The Guldeford Baronetcy, of Hempsted Place in the County of Kent, was a title in the Baronetage of England.  It was created on 4 February 1686 for Robert Guldeford.  The title became extinct on his death in circa 1740.  The Guldeford (or Guildford) family descended from Sir John Guldeford (d. 1493), Comptroller of the Household during the reign of King Edward IV.  After supporting the Earl of Richmond (later Henry VII), Sir John and his son, Sir Richard Guildford, were attainted by Parliament.  However, they were restored to favour after the accession of Henry in 1485.  Sir Richard gained prominence under Henry and notably served as Master of the Ordnance.  By his first wife Sir Richard was the father of Sir Edward Guildford, Lord Warden of the Cinque Ports and Master of the Ordnance, whose daughter Jane Guildford married John Dudley, 1st Duke of Northumberland.  Sir Richard Guildford's second son by his first wife, George Guildford, of Hempstead Place, Kent, was the father of Sir John Guldford, High Sheriff of Kent during the reign of Edward VI.  Sir John's son Sir Thomas Guldford entertained Elizabeth I in 1575.  Sir Thomas was the great-great-grandfather of Sir Robert Guldford, 1st Baronet.
Answer: 14 November 1501