Eamonn Quinn (53) and his four siblings Gilliane (50), Stephen (46), Zoe (41) and Donal (38) owned a 55pc stake in grocery chain Superquinn, which was bought by property developers for 420m. After tax, each of them pocketed about 33m. Howth-based Eamonn is a former Dragon on the hit RTÉ series Dragons' Den but is not coming back this year due to commitments in the US. He is an investor in technology groups including innovative lighting firm Nualight, food safety sensor group Kelsius and data cruncher yReceipts. Gilliane is involved in a juice business. Donal runs the family investment arm, which invested in Eddie O'Connor's Airtricity, which was sold for 1.1bn, and PC maker Dell.