You are Maester Aemon (Owl)!
“Old age is a wonderful source of ironies if nothing else.”
Wise but isolated. Inheriting a powerful ancestry, but very little taste for power. You are the experienced nonagenarian maester of the Night’s Watch. Like a typical Owl, you possess a wealth of knowledge, and a depth of clear-eyed counsel that proves invaluable to the young, insecure Jon Snow. It’s almost like you foresaw the impending war with the White Walkers. Which comes as a surprise to virtually no one who knows you and your ability to pan back and see the forest for the trees, even as everything becomes enveloped in winter snow.