Ciri’s parents drowned in a storm and she was raised by her grandmother, who is now also dead, killed during the battle with Nilfgaard for the kingdom Cintra. This means Geralt may now take on Ciri as his own, and raise her in the way of the Witcher, but all will be revealed in season two.

Lambert was one of the younger witchers from Kaer Morhen. He is one of the last witchers to be trained within the walls of Kaer Morhen.

Lambert is younger than Geralt and Eskel should be about the same age as Geralt since he trained with him and they were described very similar to each other in appearance (one of the few things that the game got wrong).

Duny had been cursed at the age of 13 by a mage hired by a usurper of the Nilfgaardian throne. Duny’s real father, Fergus var Emreis, had refused to cooperate with the plot and so was tortured but this did not break him, so the usurpers decided to get at the emperor through his son. This is where the curse came in.

According to Duny, he never meant to claim what was due to him. But destiny had other plans. Duny and Pavetta met by chance while Pavetta was reading poetry and started a whirlwind romance behind her mother’s back.

However, Geralt hasn’t exactly been faithful to Yennefer either… although this particular instance can still be forgiven due to Geralt’s amnesia. However, his tryst with Triss continued to an extent even after figuring out hints pertaining to the existence of Yennefer in his life.

No, only Triss and Yennefer matter. You can whatever you want outside of those two romances.

In Season of Storms he is broken up with Yen and has an affair with Coral, who is actually a rival with Yen and wants to hurt her. Actually, Geralt sleeps with 3 sorceresses (Coral, Coral’s apprentice, and a travelling sorceress) in Season of Storms.