He was born, the youngest of six, and one of triplets, in 1966, in Dublin, and brought up in Ireland, at Castlemartin in County Kildare, and Fox Chapel, Pittsburgh, US.
After a difficult time at Harrow School,[2] he moved to London at the age of fifteen for 6 months, living in a bedsit flat for £25 a week, working at a supermarket and with a landscape gardener.
In 2005, O'Reilly led the listing of Providence ion the Alternative Investments Market (AIM) of the London Stock Exchange.
Mrs O'Reilly, a graduate of Cornell, Columbia (for an MBA), subsequently studied at the Royal College of Surgeons in Ireland, qualifying as a doctor, and later specialising in oncology.
[7] The couple divorced in 2006,[8][9] and in mid-2007 Mrs O'Reilly's Dublin home was sold, with a statement saying she planned to move to the UK to work in the art industry.
He became engaged to Michele Clements (née Calascione) in August 2007, and married for the second time on 4 July 2008, at Lake Como in Italy,[10] with a reception at the Villa Pizzo.