Triclops Palpatine (son) Kendalina (daughter-in-law) Ken Palpatine (grandson) Mara Jade Skywalker (surrogate granddaughter)
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.
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.
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.
The Emperor's son
Emperor Palpatine's "son" was a strandcast cloned from his genetic template. Dathan was an artificially constructed strandcast from the genetic template of Sidious. and the lone specimen that lived through the cloning process.
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.
Regardless of how favorable either of these decisions have been received, the canon has firmly established Rey as a Palpatine, but with her own chosen decision to carry on the Skywalker name instead.
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.
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.
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.
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.
Even though Finn is once again Force-sensitive, and tries to tell Rey about it throughout the film, the film ends without the story addressing his abilities. While fans were left wondering about Finn's Force status, subsequent Lego films have confirmed it, and Finn is already on the road to becoming a Jedi.
Unlike Palpatine's strand-cast “son,” Snoke didn't know he was created in a lab by the Sith lord nor that he was being manipulated to rebuild the Emperor's forces.
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.
The Star Wars universe establishes Snoke as a Force-sensitive artificial being created by Emperor Palpatine to reclaim control of the galaxy. As Palpatine's puppet ruler, Snoke leads the First Order against the New Republic and manipulates Luke Skywalker's nephew, Ben Solo, into becoming Kylo Ren.
Kylo Ren Dies
While Rey is ultimately the “Skywalker” who rises in the culmination of the Sequel Trilogy, The Rise of Skywalker also gives us the return of Ben Solo, who is brought back to life through Leia's final message of love, Rey's mercy, and Han's memory.
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.
In the spite of not getting credit for the discovery, Nerdatron shares the list of concealed clues from TROS showing that Rey is definitely pregnant with the future Skywalkers.
And answers were finally given by Rey's actor, Daisy Ridley, who admitted that Obi-Wan was originally Rey's father. With the release of Star Wars: The Force Awakens, it was clear the identity of Rey's parents was to be a major part of her story.
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.
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.
While on the planet, when someone asked her who she was, Rey responded by saying that she was "Rey Skywalker." Although she wasn't related to them, both Luke and Leia had been mentors to Rey throughout the sequel trilogy.
This use of a Force power generally reserved for the Sith is foreshadowing for the movies biggest twist: Rey herself is a Palpatine, born of Sith blood and heir to the throne of her grandfather's Final Order. This is a revelation that sends Rey into a rage.
Rey's lightsaber was a yellow-bladed lightsaber that was constructed by the Jedi Rey Skywalker following the First Order-Resistance War.