Jon Arryn, Lord of the Eyrie and Warden of the East, has rallied his banners to put an end to Targaryen tyranny! Here you can see the elite troops of the Eyrie, Jon Arryn's personal household guard, always accompanying their commander in the vanguard, led by their skilled captain Ser Vardis Egen, offspring of a noble house of the Vale.
These battle-hardened veterans carry the coat of arms of House Arryn. I found two descriptions of the arms:
- "A sky-blue falcon soaring on a white moon, on sky-blue."
- "A white falcon volant and crescent moon on a blue field."
As you can see, I somehow merged these two descriptions and stuck to one of my preferred interpretations of House Arryn's colours as it can be found on the title of one of the German translations of ASoIaF: Das Lied von Eis und Feuer 8: Die dunkle Königin
I like the depiction in the series as well, but the symbol used there is too far from heraldic correctness, even for my purpose.
Ser Egen carries his family's arms: A yellow sun, white crescent moon, and silver star on blue chief above white.