historian A. L. Rowse that Richard "had no interest in sex". Michael Hicks and Josephine Wilkinson have suggested that Katherine's mother may have been Katherine Haute, on the basis of the grant of an annual payment of 100 shillings made to her in 1477. The Haute family was related to the Woodvilles through the marriage of Elizabeth Woodville's aunt, Joan Wydeville, to William Haute. One of their children was Richard Haute, Controller of the Prince's Household. Their daughter, Alice, married Sir John Fogge; they were ancestors to Catherine Parr, sixth wife of King Henry VIII. They also suggest that John's mother may have been Alice Burgh. Richard visited Pontefract from 1471, in April and October 1473, and in early March 1474, for a week. On 1 March 1474, he granted Alice Burgh 20 pounds a year for life "for certain special causes and considerations". She later received another allowance, apparently for being engaged as a nurse for his brother George's son, Edward of Warwick. Richard continued her annuity when he became king. John Ashdown-Hill has suggested that John was conceived during Richard's first solo expedition to the eastern counties in the summer of 1467 at the invitation of John Howard and that the boy was born in 1468 and named after his friend and supporter. Richard himself noted John was still a minor (not being yet 21) when he issued the royal patent appointing him Captain of Calais on 11 March 1485, possibly on his seventeenth birthday. Both of Richard's illegitimate children survived him, but they seem to have died without issue and their fate after Richard's demise at Bosworth is not certain. John received a 20 pound annuity from Henry VII, but there are no mentions of him in contemporary records after 1487 (the year of the Battle of Stoke Field). He may have been executed in 1499, though no record of this exists beyond an assertion by George Buck over a century later. Katherine apparently died before her cousin Elizabeth of York's coronation on 25 November 1487, since her husband Sir William Herbert is described as a widower by that time. Katherine's burial place was located in the London parish church of St James Garlickhithe, between Skinner's Lane and Upper Thames Street. The mysterious Richard Plantagenet, who was first mentioned in Francis Peck's Desiderata Curiosa (a two-volume miscellany published 1732–1735) was said to be a possible illegitimate child