person or dragon-associated ruler

Verdigrim

Summary

Verdigrim / Verdugrim is a dragon-family figure or ruler tied to the Goliath/Dunnen conflict around Ashkielion and Verdigrimtown.

Earlier dragon-family intelligence named Verdigrim / Verdugrim among Peridita / Lortesh-related dragon figures.
On day-48, the party sought diplomacy with Verdigrim after Dunnen people, goliaths, and merfolk debated whether to attack, sneak, negotiate, or leave.
Verdigrim’s envoys included Grimescale and Gravltooth.
His people said their lands had been theirs for one thousand years but were no longer theirs, and that Ashkielion now belonged to the goliaths.
Verdigrim occupied or claimed “Verdigrimtown” and wanted what was already his.
Verdigrim said he had earlier invited the party because Peridita told him to kill them and promised to leave his people alone.
The party told Verdigrim his mother was still alive, and he wanted to meet her.

Who is Verdigrim’s mother, and can meeting her change the Ashkielion / Verdigrimtown conflict?
What exact land or payment does Verdigrim require?
Are the five white raiding forces leverage, danger, or a separate enemy pressure?