Great as had been the injustice committed by Elizabeth in the detention of the queen of Scots, it must be confessed that the offence brought with it its own sufficient punishment in the fears, jealousies and disquiets which it entailed upon her.

Where Mary was concerned, the most approved loyalty, the longest course of faithful service, and the truest attachment to the protestant cause, were insufficient pledges to her oppressor of the fidelity of her nobles or ministers. The earl of Shrewsbury, whom she had deliberately selected from all others to be the keeper of the captive queen, and whose vigilance had now for so long a period baffled all attempts for her deliverance, was, to the last, unable so to establish himself in the confidence of his sovereign as to be exempt from such starts of suspicion and fits of displeasure as kept him in a state of continual apprehension. Feeling with acuteness all the difficulties of his situation, this nobleman judged it expedient to cause Gilbert lord Talbot, his eldest son, to remain in close attendance on the motions of the queen; charging him to study with unremitting attention all the intrigues of the court, on which in that day so much depended, and to acquaint him with them frequently and minutely. To this precaution of the earl's we owe several extant letters of lord Talbot, which throw considerable light on the minor incidents of the time.