Accused of supporting the Jacobite rising of 1715, during which the rebels had shouted "High church and Ormond", he was impeached for high treason by Lord Stanhope on 21 June 1715. He might have avoided the impending storm of Parliamentary prosecution, if he had remained in England and stood trial but instead he chose to flee to France in August 1715 and initially stayed in Paris with Lord Bolingbroke. On 20 August 1715 he was attainted, his estate forfeited, and honours extinguished. The Earl Marshal was instructed to remove the names and armorial bearings of Ormonde and Bolingbroke from the list of peers and Ormonde's banner as Knight of the Garter was taken down in St George's Chapel.