A Mistress

https://en.wikipedia.org/wiki/Thomas_Aston_(died_1553)_

Thomas Aston also had a bastard son called Roger (died 23 May 1612),[3] afterwards Sir Roger Aston, Gentleman of the Bedchamber to King James I, who married Mary Stewart, daughter to Alexander, Lord Ochiltree.[2]

References

• 1, 2, 3. The English Baronetage:: Containing a Genealogical and Historical Account of ... By Thomas Wotton. Page 107. GoogleBooks