Guinness led to a scandal and criminal trial concerning the artificial inflation of the Guinness share price during the takeover bid engineered by the chairman, Ernest Saunders. A subsequent £5.2 million success fee paid to an American lawyer and Guinness director, Tom Ward, was the subject of the case "Guinness plc v Saunders", in which the House of Lords declared that the payment had been invalid. In the 1980s, as the IRA's bombing campaign spread to London and the rest of Britain, Guinness considered scrapping the harp as its logo. The company merged with Grand Metropolitan in 1997 to form Diageo.
The Guinness Partnership 20th century, the Iveagh Trust based in Dublin took responsibility for Ireland. The Guinness Trust extended its objectives outside London in 1962, eventually operating in all parts of England. It was not related to the brewery company. The history of its first century was published by Peter Malpass in 1998. In 1992, the Guinness Trust Group acquired the Parchment Group, parent company of Hermitage Housing Association. The combined group is now known as The Guinness Partnership. Northern Counties Housing Association joined the Partnership in 2008. In 2012 the housing properties and operations of The Guinness Trust were combined with those