de bene esse: literally, of well-being, morally acceptable but subject to future validation or exception
Prince Vittorio Amedeo was born at the Royal Palace of Turin, he was a son of Charles Emmanuel III of Sardinia and his first wife Anne Christine of Sulzbach. He was styled as the Duke of Aosta from birth until he succeeded to his father's throne.
He was the eldest son of his parents and the heir apparent at birth, which was greeted with much celebration. He died the 11 August 1725, at the age of 2.
The Duke of Aosta (1723-1725) by Maria Giovanna Clementi, c 1725