Jon found out when Samwell Tarly (John Bradley) explained the truth about his parentage in the season eight premiere.
However, as fans begin the final series many have looked back and, it seems that Jon’s fate may have been revealed in the very first episode.
In season one, viewers saw Jon as an outsider in the Stark family and determine to head to The Wall to join the Night’s Watch but his uncle, Benjen Stark tries to dissuade him.
Reddit user ryborg22 pointed out: “While Jon was growing up, Benjen is the only person who he had the correct relationship with.
“He’s still Uncle Benjen after Jon learned his true identity.”
Many fans replied noting Benjen would never believed his brother Ned Stark (Sean Bean), who claims Jon was his bastard son and would have also known better about his sister Lyanna.
Another user wrote: “A lot of people, myself included, think Benjen’s first conversation with Jon shows that he knows who Jon is.
“There are a lot more things in the book that point towards him knowing, but biggest of all is when Jon says he doesn’t care about fathering sons and Benjen says “you would if you knew what it meant.”
“Benjen has never had children, so it’s not like he’s just lamenting on Jon missing out on the joys of fatherhood.
Speaking to Rolling Stone magazine, the actress remarked: “After I read season 8, I watched season 1 – there’s a lot of similarities.”
Could Maisie have been alluding to details such as Jon’s parentage and fate?
Meanwhile, some fans believe Lyanna Mormont (Bella Ramsay) may have sealed Jon’s fate when she declared him King in the North in season six because he was Ned Stark’s son.
The northern lords backed Lady Mormont and agreed to pledge allegiance to the Stark family – will they turn on Jon when they learn he is in fact as Targaryen?
Game of Thrones airs Sunday on HBO and Monday on Sky Atlantic. Fans can catch up on seasons 1-8 on Now TV.