House D'Larariel

The Calaelen Dominion is not technically part of the Valley, but rather is part of the Dales, as an outpost of House D'Larariel.
Most of the Dales are split into two major factions. The first are the High Dalish who live in dense forests. They tend toward TN/NG, and worship the greater gods, particularly Sarenrae. They're the larger group who're headed by the Council of Wandrassilin, a very similar group to the High Council of the Valley. Their capital is Lothrain, which was destroyed during the Overmind's assault. Lothrain was home to many thousands of elves, and the Elder Eye, a magical artifact surviving from the 3rd age. At their best, the high Dalish are wise, careful and powerful. At their worst, they are conservative to a fault and slow to act and slower still to change with the times.
The Lower Dales is mostly plains and woodlands. The Lower Dalish are a friendly lot, who're almost exclusively CG and worship the Elf-Father, Darach-Albeth. The Lower Dales is also home to many catfolk tribes, from which Amerasu Foeslayer hailed. The Lower Dalish have little use for the council of Wandrassilin, and prefer to follow the laws of the land and their hearts.
House D'Larariel is a High Dalish house, and once had a seat at the council of Wandrassilin. Unusually for the Dales, House D'Larariel tends towards the Lawful end of the spectrum. Tired of seeing the land decay as the fifth age rolled on, House D'Larariel began to change it's ways, setting down hard laws aiming to protect the House and its people. Gradually this created a rift between the rest of the Dales and the House, eventually leading them to lose their seat on the council. House D'Larariel sought strength from the Archons, the Axiomites ,and the Devils, learning their ways of preserving the natural order. When their home city of Tsuen was ravaged and burned by extraplanar entities, the rest of the Dales saw this as vindication that House D'Larariel had straued too far from the "correct" path.
Today, the house is headed by High Lady High Arcanist Maya D'Larariel. Her title is odd; "High Lady" is bestowed on her by the High Council of the Valley, but the title of"High Arcanist" is a Dalish title, left over from the days when the head of House D'Larariel would be the quintessential arcanists of the Dales, and often the most powerful.
Much like Illden before her, Maya spents much of her time in matters of diplomacy and court, as she struggles to rebuild her disgraced house. Her cousin Caranthir D'Larariel manages what is left of the house in the Dales. For now, the Dominion thrives, and Maya's political power has begun to stabilize.