One could theorize that he bore a child through some sort of space artificial insemination, or something closer to what we've seen in canon Star Wars material. In the canon comic Darth Vader No. 25, it is revealed that Palpatine somehow used the Force to manipulate midichlorions to impregnate Shmi Skywalker.
It is subsequently revealed that Palpatine had a son who renounced him; the son and his partner took their daughter Rey to the planet Jakku, assuming lives as "nobodies" to keep her safe. Palpatine's assassin Ochi eventually found Rey's parents and killed them on his orders, but never found Rey.
We know for a fact that Sheev Palpatine, Darth Sidious himself, had one son. Whether biological or the result of cloning, this son seemed to be a complete unknown to viewers and the galaxy until The Rise of Skywalker.
In addition to rejecting Sidious, Dathan married a woman named Miramir, whom he fell in love with. Together, they conceived a child, their daughter Rey, who was born in 15 ABY. Although he renounced the Sith Eternal and his donor, the Palpatine bloodline would prosper through him, just as Sidious predicted.
A new Star Wars novel confirms when Emperor Palpatine learned Luke is Darth Vader's son: right before his call with Vader in The Empire Strikes Back. Star Wars reveals Emperor Palpatine learned Luke Skywalker is Darth Vader's son during The Empire Strikes Back.
In The Rise of Skywalker's novelization, we learn that Rey's father was a failed clone of Emperor Palpatine. He was initially created to be a vessel to house Palpatine and his Sith power. However, Rey's father proved incapable of doing so.
Rey was born on Hyperkarn in 15 ABY during the rise of the New Republic. Her father, Dathan, was a bioengineered Strand-Cast cloned from the genetic template of Darth Sidious, the Sith Lord who ruled the Galactic Empire as Emperor Palpatine.
She does not have a baby bump, her hand never goes to her stomach to indicate she's carrying a child, and there wasn't exactly any time for her to have conceived a child with anyone in the course of the film, including Kylo Ren/Ben Solo.
Despite being enemies, Rey and Kylo Ren share a connection called a 'Force dyad' and eventually become romantically involved with one another. Following Palpatine's final defeat and her own resurrection, Rey adopts the name Rey Skywalker to honor her mentors and their family legacy and renounce her lineage.
And in The Rise of Skywalker we finally learn that Rey is actually the granddaughter of Palpatine. Her parents—one of which is the child of Palpatine—abandoned her on Jakku to keep her safe from her grandfather who was aware of her power.
While Palpatine's lightning is by far the most powerful thing seen in the Star Wars movies, the Son's red lightning is certainly more dangerous. It's only been used by one other character in Star Wars canon, and that character was none other than Darth Vader.
The son of Han Solo and Leia Organa, Ben Solo was seduced by the dark side of the Force and renamed himself Kylo Ren: leader of the Knights of Ren, champion of the First Order, and apprentice to Supreme Leader Snoke.
As the Death Star had been destroyed, and the Battle of Yavin had finally taken place, the years then moved into ABY (After the Battle of Yavin). It's said that Star Wars: Return of the Jedi takes place during 4 ABY, meaning Palpatine was 88 when he met his original end.
Emperor Palpatine's official heir would normally be Lord Darth Vader, as he was his Sith apprentice and the Supreme Commander of the Imperial Forces.
A crystal embodies the Jedi as the heart of the lightsaber, and pure kyber has no color until it's bonded to the Force user. This process likely resulted in Rey Skywalker's lightsaber being yellow.
But that itself ended up not being the final revelation, as Rey was firmly connected as Emperor Palpatine's granddaughter (yes, the Emperor Palpatine) in The Rise of Skywalker. The culmination of that movie saw her reject that family and instead carry on the mantle of the Skywalker name.
Anakin Skywalker is the son of Shmi Skywalker, born without a father through the Force. He is the secret husband of Padmé Amidala, the father of Luke Skywalker and Leia Organa, the father-in-law of Han Solo, and the maternal grandfather of Ben Solo.
So does Finn love Rey? No, not like that. The films and comments made from those involved in making the trilogy have made clear that despite seeming to have some romantic tension between them, there is nothing going on between Rey and Finn.
Rey's parents are none other than Dathan and Miramir. No, that's not a typo. Her dad's name is Dathan, which is at least slightly better than Sheev Palpatine. But only slightly.
HUGE STAR WARS REVEAL! Rey RETURNS and is PREGNANT with Force Ghost Kylo Ren's Baby!?! Disney's biggest reveal at SW celebration: Force Ghost Kylo Ren knocked up Rey.
In a new excerpt, it's revealed that the names of Rey's parents are Dathan and Miramir. Dathan is the dad and Miramir the mother, if you were wondering; it's not always clear with these names from a long time ago in a galaxy far, far away.
Upbringing. Zayne showed talent in the Force, as many expected, being Rey's son, but the boy was never trained by his mother. Instead, Rey kept her life as a Jedi Master and as a mother separate from her son, reasons being unknown to anyone for close to twenty years.
That's ok, but a little disappointing. Since The Last Jedi outright says Rey's parent were not important (from a certain point of view), and Luke shows no indication that he knows who Rey is, or even cares, it'd be really hard to justify that original idea.
The mystery of Rey's parents was kept secret for years, and Star Wars actor Daisy Ridley revealed the original idea was to have Obi-Wan as her father.
She replies, "Myself," to which Luke says, "Because you're a Palpatine. Leia knew it, too" This realization takes Rey by surprise, as there had been few hints about her heritage up to that point.