Source of Wealth:Entertainment
Denis, 57, and his wife Caroline, 49, run one of the UK and Ireland’s biggest entertainment promoters. Their Dublin holding company, Ronmall, is valued at £171m.
Through it they own MCD Productions and stakes in the Glastonbury and Oxegen festivals. The 49%-owned LN-Gaiety Holdings made £12.9m operating profit in 2009. They also have interests in theatres.