Ha'krrenn is the El Shaddai who is known to have been the patron of the Nephilim and presumably their creator. Some speculate that Ha'krrenn created El-Bayir, while others argue that They came upon it much like Bouwen later would.
What happened between the Giants and Ha'krrenn is unknown, but by the arrival of the Elohim of Bouwen, the Giants had ceased to worship Them and They were not encountered in Lumenar and have yet to be encountered in all of recorded history.