After Klaus sacrificed himself to save the family, Katherine spent five years raising Adyelya and searching for ways to bring their family back. Katherine kept Klaus' memory alive for Adyelya as she told her daughter things about her father such as his loyalty to his family and how much he loved her.
After Katherine found Wes' corpse, she realized that Nadia was about to pass away, so Katherine went to the boarding house to stay with her daughter until the werewolf venom finally killed her. Later, Bonnie, due to her status as the Anchor, encountered Nadia's ghost.
In 1490, Katherine gave birth to a girl, who was taken from her by her own father and given away. Dobrev really sold the crushing emotions of having one's child ripped away from them.
At the end of the second season, Adyelya is living with Katherine who seeks refuge with the New Orleans witches (who have become her allies), and by the end of the third season, she is living with Katherine on the road. By the fourth season, she lives with Katherine and the Mikaelson Family at the Abattoir.
After the birth of their daughter, Adyelya, their main priority is how they can best protect her, as both Klaus and Katherine have numerous enemies they have made over the years, However, they often have disagreements over the best way to protect their daughter.
In the season four finale of The Vampire Diaries, Graduation, Katherine slept with Niklaus Mikaelson and conceived her daughter, Adyelya.
Adyelya Petrova (Bulgarian: Адиела Петрова), more commonly known as Alice Pierce, is a witch of the Traveler sub-culture and a former main character of The Vampire Diaries. She was also the second-known Petrova doppelgänger of Ismene. In 1490, Alice and her sister were disowned by their father.
Who is the mother of Adelya Mikaelson? The mother-daughter relationship between the Hybrid, Katherine Pierce and the Tribrid, Adyelya Mikaelson. Adyelya is Katherine's second child and daughter after Nadia.
Klaus and Katherine conceived their daughter during a drunken one-night stand, when they hated and were hostile with each other. All three have had a nickname regarding their heritage, Klaus - Big Bad Wolf, Katherine - Little Witch/Witch Girl/Mother Witch, and Adyelya - Littlest Wolf.
Dianna Monet Mikaelsson (nee Labonair) is an Original Immortal Tribrid. She is the daughter of Alaina Olsen and Cyrus Labonair. She is the wife of Elijah Mikaelson, adoptive mother of Saga Mikaelssen, and the mother of Olympia Mikaelson.
Nadia Petrova (Bulgarian: Надя Петрова)was a major recurring character of The Vampire Diaries. She was a vampire and a member of The Travelers who was Katerina Petrova's daughter, making her an ancestor of Elena Gilbert and a descendant of Amara.
Katherine also seems genuinely happy to see her daughter, perhaps the reason why she fought to stay alive when Damon fed her to Silas. Katherine and Nadia were both ruthless and heartless their entire lives. Now, they have found each other.
There in England, in 1492, Katherine met Klaus, who she was taken with until she found out he wanted to drain her blood to lift a vampire curse. She ran, with Trevor's help.
The episode starts with a flashback to Bulgaria in 1490 where Katerina (Nina Dobrev) gives birth to a baby girl but her father takes it away immediately because the pregnancy brought shame to the family.
For centuries, Klaus continued looking for ways to break the Hybrid Curse, for which he needed a Petrova doppelganger. The ritual that could undo the curse also needed a witch to channel the power of a full moon into the moonstone. Then Klaus would need to sacrifice a werewolf and a vampire.
Petrova was born in Moscow. Her father Viktor was a hammer thrower, while her mother Nadezhda Ilyina won a bronze medal at the 1976 Montreal Olympics in the 400 meter relay.
Hope Andrea Rebekah Mikaelson is a vampire-werewolf-witch mortal tribrid. She is the daughter of Niklaus Mikaelson and Hayley Marshall-Kenner. She is the stepdaughter of Jackson Kenner and Camille O'Connell-Mikaelson.
Klaus has two known progeny – Hope and Hayley Marshall-Kenner. Unfortunately, the child he fathered with Cami O'Connell was stillborn. His daughter Hope subsequently gave birth to a baby whose father is yet undiscovered; however, it's speculated that Marcel Gerard could be the sire.
Through Katherine's pregnancy, Klaus becomes close to her as he learns to work with her and protect her; throughout this, his feelings for Katherine grow strong, developing into romantic feelings.
Henriikka Mirai Darina Mikaelson, more commonly referred to as Henri or Riika, is a major recurring character on Legacies, though she was first appeared in season five of The Originals. Henriikka is the hybrid daughter of Kol Mikaelson and Davina Claire-Mikaelson.
Esther was the wife of Mikael and the former lover of Ansel. She was the mother of Freya, Finn, Elijah, Niklaus, Kol, Rebekah and Henrik.
The family of Originals is comprised of Klaus, Elijah, Rebekah, Kol, Finn, Mikael, and Esther. There were two other brothers but one died before they moved from Europe to Virginia (long before it had been settled), and the other, Henrik, died from a werewolf while there.
Amara is the oldest known ancestor of the Petrova family or bloodline, being born some time during 1st Century B.C.E. (100 B.C.) in Greece. Amara was originally human but became the world's first immortal woman after she consumed the immortality elixir. Amara is assumed to be of Greek origin or descent.
Isobel was a member of the Petrova Family and a former relative of the Saltzman Family due to her marriage with Alaric. She was also a relative to the Gilbert Family, as she was Elena's biological mother.
Elena Gilbert (3rd Petrova Doppelgänger): Elena was born on June 22, 1992, in Mystic Falls, Virginia. She was the biological daughter of John Gilbert and Isobel Flemming, and was therefore a descendant of Katerina Petrova, to whom she bears a striking physical resemblance.