Lyanna Stark was the mother of Aegon Targaryen. And Prince Rhaegar Targaryen was the father of Aegon Targaryen, Aegon was the first and only child to Lyanna and Rhaegar. Prince Rhaegar Targaryen was the elder son of King Aerys ll, Rhaegar Targaryen siblings names are Daenerys Targaryen, Viserys Targaryen.
Aegon Targaryen mother was died after his birth in short time and his father was died during the Slian Single combat fight against King Robert Baratheon at the ruby fort during the battle of Trident. After the death of King Aerys ll Prince Rhaegar’s first wife Elia Martell along with her two kids were killed in Kings Lnading by Gregor Clegane.
Lyana Stark mother of Aegon Targaryen was abducted by Prince Rhaegar after the death of Rhaegar Lyanna give her son to her elder brother Eddard Stark and told him never tell any one about his real identity. The main reason behind this is that Aegon Targaryen has Stark’s and Targaryen blood in his body.
Jon Snow is the main character in Game of Thrones, His real name is Aegon Targaryen he was the son of Lyanna Stark and Prince Rhaegar Targaryen, Lyanna Stark was the daughter of Eddard stark before her death she gave it to her elder brother and told to look after him and never tell him about his real identity.
Jon Snow start living with Eddard Stark in Winterfall and get famous by the bastard son of Eddard Stark in seven Kingdoms, Jon always stay calm and in serious mod but deep inside he always want to remove the title of bastard from his name, That’s the main reason he join’s Night’s Watch on the Great Wall. And start serving there.
When he was going on Great Wall Jon Snow met Eddard Stark where they discuss about the mother of Jon Snow. But Eddard Stark didn’t tell him about his mother and said we will talk about when we meet again. After that Jon move towards Great Wall and Eddard Stark move towards Kings Landing as a hand of the king Robert Baratheon.
But the problem is that Eddard Stark killed by King Joffrey after the death of Robert Baratheon and the mystery about Jon Snow’s identity remain mystery. And he live his entire life with the name of Eddard Stark’s bastard. He served Night’s watch and after that he take back his land Winterfall from Ramsay Bolton in the Battle of Bastards. And reunite his remaining family Arya Stark, Bran Stark, Sansa Stark.
After that Jon Snow met with Daenerys Targaryen who is his aunt by blood, Because Daenerys Targaryen is the younger sister of Prince Rhaegar Targaryen. Jon leave Winterfall on his step sister Sansa’s hand and meet Mother of Dragon for the help to fight against White Walkers, Who are the real threat for human.
During his stay Jon Snow and Daenerys Targaryen did some physical or intimate seen together. And Dany fall in love with Jon Snow, She also don’t know the real identity of Jon Snow, Untill Bran Stark revealed the true identity of Jon Snow in front of Samwell tarly in season 7. Game of Thrones Season 8 will bring all the details of Jon Snow in front of him.
Targaryen Family Tree
Aerys Targaryen and Rhaella Targaryen the main rot of the Targaryen house. After that when we put light on the next generation we see Rhaegar Targaryen who married with Elia Martell and have 2 kids from her their names are Rhaenys and Aegon. Prince Rhaegar Targaryen was the elder son of King Aerys ll (The Mad King) who was the last king sit on the Iron Throne. Rhaegar have 2 siblings Viserys Targaryen and Daenerys Targaryen.
Now this is the most important and most complex thing to understand Prince Rhaegar Targaryen abducted Lyanna Stark the sister of Eddard Stark and marry with her. Lyanna Stark give birth to Aegon Targaryen and died after his birth and also Prince Rhaegar was killed by Robert Baratheon, Before death of Lyanna Stark she gave her son Aegon to Eddard Stark and warn him never reveal his true Identity. Because Aegon have Stark’s and Targaryen blood in his body.Eddard Stark brought him in Winterfall with the name of Jon Snow and told people he is the bastard son of mine.