Ciri was bound to Geralt by the “law of surprise” promise her father Duny (Bart Edwards) made to the witcher for saving his life. Geralt doesn't realize — until a newly pregnant Pavetta throws up on the floor of the banquet hall — that he will be linked by destiny to the couple's yet-to-be born child.
Ironically, Geralt became Ciri's adoptive dad because he saved her biological father. That surprise turned out to be Ciri. Duny and Pavetta are later presumed dead in a shipwreck. After Calanthe perishes during the Sack of Cintra, Ciri is forced to go on the run.
Nevertheless they do love each other very much. Ciri is Geralt's adopted daughter, bound to his destiny by the Law of Surprise. The books and Netflix show detail how Geralt came to have his fate intertwined with Ciri's, and it would later be that Ciri would also become a Witcher under the tutelage of Geralt.
Since Ciri never underwent the witcher mutations, she's very much fertile and can bear children. After all, Emhyr var Emreis wouldn't have made Ciri Empress of Nilfgaard if she were sterile.
In the interview Andrzej Sapkowski stated that in the third book of the series (Baptism of Fire) Geralt is between 50 and 60. He looks about 30. When sorcerers are talking between them it is being reaveled that Yennefer is in her 90ties and Geralt is significantly younger than she is.
Cirilla Fiona Elen Riannon (Ciri for short) is the Princess of Cintra who's eventually adopted by Geralt and Yennefer, with the latter couple arguably called true soulmates. In Season 1 of the Netflix series, Geralt and Yennefer cross paths and fall in love.
In fact, in the novels (and in the show) both Yennefer and Geralt are incapable of having biological children. For Geralt, the show affords him a wide landscape of emotions — his story isn't pegged to his ability to father children.
Witchers age slowly, and can live for several centuries, thanks to the mutagens they receive during the Trial of the Grasses. Provided the witcher isn't killed by drowners, or more likely, by revolting peasants, they can live to be several hundred years old.
Geralt really did die of the wounds he suffered at the business end of Rob's pitchfork. During the riots 76 nonhumans perished including Geralt of Rivia who was stabbed in the chest with a pitchfork by a man named Rob. Yennefer of Vengerberg died trying to heal the witcher. Their bodies were taken by Ciri.
In fact, in the novels (and in the show) both Yennefer and Geralt are incapable of having biological children. In fact, much of his emotional arc is about him accepting his role as a father figure to Ciri.
While it makes them powerful, the mutations also leave Witchers sterile and unable to have children which is why their most common way of recruiting trainees is through “the law of surprise,” a tradition they invoke when payment cannot be made, claiming something the person in their debt doesn't know they have.
No, Witchers are not immortal but they age at a very, very slow rate. The books don't clearly state how old they really can get, but there are a few indications. In the book "Blood of Elves" Triss meets Geralt again after a long time when she comes to Kaer Morhen. He had changed.
118 mphMiddleweight Motorcycles: Harley-Davidson XL1200C Sportster 1200 CustomSPECIFICATIONSFuel mileage:36 mpg0-60 mph:4.2 sec.1/4-mile:12.93 sec. @ 102.22 mphTop speed:118 mph•Oct 17, 2012
Top Speed. Motorcycle.com tested the 2011 model XR1200R Sportster, and the top speed attained by the bike was 122 mph. Older versions of the Sportster don't attain this speed. The 2001 Sportster 1200 Customs have a top speed of 106.9 mph.