Also on the subject of names, I wanna bring up suggestions for the main castles of each family.

Hyland's Keep - Honor's Peak, majestic castle built on top of a large mountain.
Windwood, built in the center of one of the many forests of the region, where the wind is noticeably strong.

Gully's Keep - Storm's Watch, built on the very edge of the sea, where the storms are strongest.
Serpent's Roost - If the Gully's animal ends up being a sea serpent, this might work. Built on a cliff overlooking the sea, rumored to have many tunnels that lead into the caves below.

Just a few thoughts, since I don't think anyone had brought anything up.