The grandchildren of former billionaire Sean Quinn are owed at least €4 million in dividends from QuinnBet, the family’s online gaming business, according to claims made before the High Court. Sean Quinn Jr and his wife Karen Quinn have brought a case against Eoin O’Shea, an accountant, barrister, and the share trustee of the majority of the shares of QuinnBet. The couple have brought the case on their own behalf and on behalf of their three sons aged between seven and 10. They claim that since 2021, the dividends were paid to Secoth Investments Ltd, a shareholder in the gaming…