The Complete Guide to All 21 Major Houses on Game of Thrones

Location: The Vale
Motto: "As High as Honor"
Sigil: A white crescent moon and a falcon on a blue background
Major members:

• Robin Arryn, future Lord of the Eyrie and head of House Arryn
• Lysa Arryn, wife of Jon Arryn and mother to Robin — Deceased
• Jon Arryn, former head of House Arryn and former Hand of King Robert Baratheon — Deceased

Why They Matter:
House Arryn is another house rarely in the forefront of the action in Game of Thrones — one reason being that they're situated far away on the east coast of Westeros, and the seat is the Eyrie, high up on a mountain peak out of reach of basically any attacks. Another reason is that the house's current heir, Robin Arryn, is basically still a kid.

However, Robin Arryn's uncle and protector until he comes of age is Petyr Baelish, the slipperiest, sneakiest guy around — who has a special place in his heart for Sansa Stark. Because of this connection, Littlefinger brings the Knights of the Vale to Winterfell, and they help Jon defeat the Boltons.