As we learned from Jon Snow and Ellaria Sand in Game of Thrones, bastard children born from noble lords have a unique surname based on which part of the Seven Kingdoms they were born in— for
High Hall, Moon Door, Crescent Chamber, Maiden's Tower, sky cells, godswood. The Eyrie is an ancient castle and seat of House Arryn, one of the oldest lines of Andal nobility, within the Vale of Arryn. It is situated in the Mountains of the Moon on a shoulder of the peak known as the Giant's Lance, several thousand feet above the valley below.
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