Daeron Dayne is the son of Ser Arthur Dayne and Shaena Targaryen, now Arthur was the only son of his father and mother who wished for him to become Lord of Starfall after their passing but Arthurs heart wished to be something else............ he wished to serve in the King's Guard of Aerys II and after his passing in that of his closest friend Rhaegar Targaryen. Arrangements where made Arthur Dayne was allowed to serve in the King's Gaur and take his vow after his marriage to Princess Shaena Targaryen and she gave birth to their son. Because being such close friends to the Crown Prince did have it's bonusses now after Daeron's birth Arthur was not allowed to father any more children but Princess Sheana almost did not survive the birth of her only child, so she was advised by the Maesters to never fall with child again...... as if the two were made for each other in a way?