On 4 April 1786, Burke presented the Commons with the Article of Charge of High Crimes and Misdemeanors against Hastings. The impeachment in Westminster Hall, which did not begin until 14 February 1788, would be the "first major public discursive event of its kind in England", bringing the morality and duty of imperialism to the forefront of public perception. Burke already was known for his eloquent rhetorical skills and his involvement in the trial only enhanced its popularity and significance. Burke's indictment, fuelled by emotional indignation, branded Hastings a 'captain-general of iniquity'; who never dined without 'creating a famine'; whose heart was 'gangrened to the core', and who resembled both a 'spider of Hell' and a 'ravenous vulture devouring the carcasses of the dead'. The House of Commons eventually impeached Hastings, but subsequently, the House of Lords acquitted him of all charges.
Try to answer this question if possible (otherwise reply "unanswerable"): Which house acquitted Hastings?
House of Lords