Kylo Ren har två föräldrar: Han Solo och Leia Organa.
Leia är dotter till Anakin Skywalker / Darth Vader, som gör Kylo Ren sonson av Anakin / Vader.
Leia hänvisar till sin son ett antal gånger i samtal med Han.
He met her eyes steadily. “We’ve lost our son, forever.”
“Always,” she told him. “From the shadows, in the beginning, even before I realized what was happening, he was manipulating everything, pulling our son toward the dark side.
“If you see our son,” Leia whispered, “bring him home.”