Hero Oomkens von Esens (c.1455--1522) was a Frisian nobleman, the Earl of Harlingerland, who inherited the title upon the death of his father, Sibet Attena von Esens, in 1473.
Hero Oomkens von Esens (c.1455--1522) was a Frisian nobleman. A Frisian nobleman was the Earl of Harlingerland. A Frisian nobleman inherited the title upon the death of his father in 1473. Sibet Attena von Esens was his father. A Frisian nobleman was the Earl of Harlingerland.