Jon Arryn, Lord of the Eyrie
From Asoiaf
Jon of House Arryn, Lord of the Eyrie, Defender of the Vale, Warden of the East and Hand of the King, married three times.
Lady Jeyne of House Royce, his first wife, died in childbed, her daughter stillborn.
His second wife and cousin, Lady Rowena died of a winter chill, childless.
Jon received Eddard Stark and Robert Baratheon as his wards.
Aerys II Targaryen, King of the Seven Kingdoms demanded the heads of Eddard Stark and Robert Baratheon from Jon. He revolted instead.
282 AL Eddard Stark, Lord of Winterfell and Jon married Catelyn and Lysa of House Tully, daughters of Lord Hoster Tully at Riverrun.
288 AL Jon and Lysa had a single son, Robert Arryn.
Jon was appointed Hand of the King.
King Robert gave a tourney on his son's name day. Jon was healthy then, but a fortnight later he was dead.
Jon fell ill and died after a short while. Unable to save him, Grand Maester Pycelle gave Jon milk of the poppy to ease the pain.
His son Robert became Lord of the Eyrie and Defender of the Vale.
In a secret message to Catelyn Lysa said that Jon Arryn was murdered by the queen and the Lannisters.