Ryan, a former actress who appeared in The Tudors and Casualty is bigging up a luxury good business called Roads. It sells high-end perfumes, table-top books and makes arty films. Danielle (32) and her brother Cillian (33) inherited their father Cathal's share of billionaire Ryan's fortune.
The estate was worth €249m, with around €35m given to charity. She hooked up with Saoirse Ronan to develop the Lir acting academy in Dublin. She also heads up the Portico group, which handles the family's investments. Ryan moved from Kildare to London with new hubby Richard and tweets images of her jet set life @tearneck. There are valuable properties in Tuscany, Mexico and Chelsea. Cillian breeds horses in Kildare.