landed in Ireland in 1689 to assert his right to the British throne, he held a parliament in Dublin, which passed acts of attainder against upwards of 3000 Protestants.
Thus three of the rebel lords were pardoned after impeachment and attainder in 1715.
An Act of Attainder (repealed in 1819) was passed, confiscating his property; and his wife - against whom the government probably possessed sufficient evidence to secure a conviction for treason - was compelled to leave the country before her husband had actually expirbd.
A bill of attainder, passed by the Lords, was rejected at Cromwell's instigation and probably with Henry's goodwill by the Commons.
The articles of impeachment were sent up to the Lords in October, the trial beginning on the 12th of March 1644, but the attempt to bring his conduct under a charge of high treason proving hopeless, an attainder was substituted and sent up to the Lords on the 22nd of November.