 Whatever the case may be, the peace is short lived, as Mac Curtain had left Ireland with the Jacobite Army of 19,000 Irishmen under the Earl of Lucan in 1691.He appears to have returned in Ireland in 1696 during the Jacobite attempt to depose the Williamite government.For this, Mac Curtain was placed under royal attaint in 1696 (the state confiscation of his property and civil liberties).