She is sometimes referred to as Katheryn Tudor, her father being Tudur ap Robert Vychan[1] and her mother Jane Velville.
Her maternal grandfather Sir Roland de Velville (1474 – 25 June 1535), is said to have been a natural son of King Henry VII of England by a Breton lady.
[2] They had been married for nine years and had two sons: A story recorded by Askew Roberts for his History of the Gwydir Family states that Katheryn was accompanied to the funeral of her first husband, by Maurice Wynn, who is said to have proposed marriage to her upon leaving the church.
Roberts states that the widow declined the offer on the basis that she had already promised to marry Sir Richard Clough, who had proposed to her on the way to the church service.
[4] Katheryn did indeed marry Richard Clough, an extremely wealthy merchant, who established the Royal Exchange in the City of London with his business partner Sir Thomas Gresham.