Lord Wyman Manderly of White Harbor is the head of House Manderly.
He is so fat he can no longer ride a horse and must be carried in a litter.
He has at least two sons, Ser Wylis and Ser Wendel. He is nearly sixty years old.
House Manderly of White Harbor is an ancient house from the North with its origins in the Reach.
A thousand years ago the Manderlys lived at the banks of the mighty river Mander, but they were driven away and were welcomed by the Starks of Winterfell as their own bannermen. Due to those origins, they are the only noble house from the North of Andalish origins and customs, and thus they follow the Faith instead of the Old Gods.
Eventually, they became the lords of White Harbor, previously inhabited by pirates that were driven out by Jon Stark. White Harbor is the only city in the North, and a main port for commerce and naval transport.
Their blazon is a white merman with dark green hair, beard and tail, carrying a black trident, over a blue-green field.