He was heir to the office of Lord Marshal, Earldom of Norfolk and Barony of Manny.
His two other half-brothers had died before being ten years of age; thus, he was his parents' only son.
He drowned in a well in Deptford, Kent[2] in January 1362.
[1] He was succeeded as heir of his father's barony by his full sister.
Finally, their mother's titles were to be inherited by their older half-siblings and the descendants of them as their mother would die after the Manny title would become extinct.