He was also appointed to the Order of the Garter, taking the stall vacated by the executed Lord Hastings. This commitment bore further fruit in the autumn of 1483, when a series of plots against the King coalesced into Buckingham's rebellion, a rising in southern and western England under the loose leadership of the Duke of Buckingham. When Richard rose to suppress the rebellion, Stanley and his brother William were at the King's side and were richly rewarded from the forfeited estates of the rebels and Stanley was appointed to Buckingham's position as Lord High Constable of England. Whilst Stanley might have had no other option than to act as Richard's loyal subject, it is conceivable that he may himself have become involved in the uprising. His wife, Margaret Beaufort, was a key conspirator, having brokered the marriage alliance between Edward IV's daughter Elizabeth of York and her son Henry Tudor. Indeed, it was only by giving a solemn undertaking to Richard to keep his wife in custody and to end her intrigues that Stanley saved her from attainder and disgrace and presumably his own position at the same time. Richard was evidently well aware of the threat from this quarter since in the summer of 1485, when Stanley sought permission to leave the court and return to his northern fastness of Lathom, the king insisted that his son, George Stanley, Lord Strange, take his place at court as a token for his father's good behaviour.