The Nuttall Encyclopedia
Sadler, Sir Ralph
A politician and diplomatist; was employed by Henry VIII. in carrying out the dissolution of the monasteries, and conducted diplomatic negotiations with Scotland; distinguished himself at the battle of Pinkie; enjoyed the favour of Elizabeth; was Queen Mary's keeper in the Castle of Tutbury; was the bearer of the news of Queen Mary's execution to King James (1507-1587).
Wood, James, ed. Entry for 'Sadler, Sir Ralph'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/s/sadler-sir-ralph.html. Frederick Warne & Co Ltd. London. 1900.