From A Wiki of Ice and Fire
|Book||The World of Ice & Fire (mentioned)|
Jon Hightower was a Lord of the Hightower and head of House Hightower during the reign of King Aegon IV Targaryen.
Jon served as Hand of the King during the final years of King Aegon IV Targaryen's reign. He brought Serenei of Lys, the last of Aegon the Unworthy's mistresses, to court at King's Landing.
- ↑ The World of Ice & Fire, The Targaryen Kings: Aegon IV.