BUCHAREST, Romania (AP) — Three generations of Romania's royal family were embroiled in a very public row Thursday as a disinherited prince's attempts to see his ailing grandfather led his own mother to renounce him.

Princess Elena accused her son, Nicholas Medforth-Mills, of disregarding "the privacy, suffering and dignity" of her 96-year-old father, former King Michael, in a statement issued by the royal house.

Her comments came after the royal house filed a complaint to Swiss police Tuesday alleging Medforth-Mills had tried to force his way in to his grandfather's home in Aubonne, Switzerla...