Gerard was immediately made Lord of Heeze, Leende, the land of Montcornet and of Bancigny.

[2] In 1345 Gerard II joined William IV, Count of Holland in his campaign against Friesland.

On 26 September 1345 almost the whole invasion army was annihilated near the Red Cliff in the Battle of Warns.

Den beste here set ic voren, Hij droegh gout, van keel (rood) III horen, Van silver waren si gebonden, Manlijkc sach men tallen stonden, Als hem last op quam oft nood Dies is ter Vriesen bleven doot.

The best lord I'll mention first, He wore gold, with three red horns, These were bound by silver cords, He was always courageous, In trouble and in need, This man was left dead in Frisia.