Maester Luwin

From Asoiaf

Maester Luwin is a maester of the Citadel in service at Winterfell

Learning that Robert Baratheon, King of the Seven Kingdoms was coming north to Winterfell with the royal family Eddard Stark, Lord of Winterfell had Luwin send an invitation to his brother Benjen Stark in the Watch.

Benjen Stark told Maester Luwin that Jon Snow wanted to take the black.

Someone left the box from Lysa Arryn in Maester Luwin's observatory. The box contained a lens of Myr and beneath a false bottom a message from Lysa inside addressed to Catelyn. Desmond escorted Maester Luwin to see Lord and Lady Stark. Maester Luwin was allowed to enter Catelyn's bedchamber and handed the message to her. It was written in a secret language Catelyn and Lysa had made when they were little. In the message Lysa says that Jon Arryn was murdered by the queen and the Lannisters. Having read and burning the letter, Catelyn told Eddard that he now must become King Robert's Hand. Maester Luwin agreed. Eddard reluctantly accepted. He decided that Catelyn would have to stay in Winterfell to help Robb rule. Rickon will also stay, buth the other children he will bring south. Catelyn refused to let Jon Snow stay at Winterfell. Maester Luwin told them that Jon aspired to join the Night's Watch. They agree this was the best solution. Eddard would speak to his brother Benjen and later Jon.