Ferrari-driving Blackrock College-educated former accountant Lochlann Quinn, 79 and an ex-chairman of both the ESB and AIB, made most of his money from selling a 26pc stake in 2004 in heating and kitchen appliance maker Glen Dimplex, the firm he co-founded with Martin Naughton. Naughton bought the stake from him, but the two are also each 25pc shareholders in Dublin's Merrion Hotel, which they founded almost as a hobby, and which houses a collection of paintings they have built up together.
In 2001, Quinn paid €38m for the Chateau de Fieuzal vineyard in Bordeaux, and previously made about €40m selling a number of IFSC office blocks. A keen philanthropist, UCD's business school is named after the Dubliner, and he previously gifted a 17th-century painting to the State, having bought it from the Beit collection to prevent another buyer taking it out of the country. He is believed to own a number of investment properties, including two in London's Mayfair.