After Rose discovered that Katherine had stolen the moonstone from
She's Turned By Klaus
In the television series, Rose force-fed Katherine her blood to heal her and turn her over to Klaus. But Katherine made the decision to turn into a vampire in order to escape him.
Throughout The Vampire Diaries
In the season four finale of The Vampire Diaries, Graduation, Katherine slept with Niklaus Mikaelson and conceived her daughter, Adyelya.
She then became a vampire after she tricked Rose into feeding her her blood, so she could hang herself and transition. Once Katherine turned, her blood became useless to Klaus, as he needed the blood of a human doppelgänger.
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.
Adyelya is the tribrid daughter of Niklaus Mikaelson and Katherine Pierce, the step-daughter of Markos, Leader of The Travelers—who marries her mother—and the twin sister of her younger brother by several minutes, Håkon Mikaelson, who was murdered in From a Cradle to a Grave by the witches.
She is the only biological child and the younger daughter of the original vampire, Elijah Mikaelson and the original immortal tribrid, Dianna Mikaelsson.
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.
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.
3. The Curse of the Sun and the Moon was bound with Petrova blood. And the Petrova doppelganger was created to undo the spell. Thus, Klaus needed Katherine to drain her blood as a sacrifice to break the spell.
While many of the characters are new and delving into their own narratives, there's one in particular from Legacies who got everyone talking. Prepare yourselves for this one: Damon and Elena have a daughter. And her name is Stefanie Salvatore.
Much of Elena's story revolves around her relationships with vampires Stefan Salvatore and his older brother, Damon. It is revealed that Elena is a Petrova Doppelgänger (like Katherine, Amara and Tatia), which is thus responsible for her being identical to her ancestor, Katherine Pierce (née Katerina Petrova).
Isobel was a distant descendant of Amara. 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.
Sexual, Dated; Former Enemies/Allies, Friends/Frenemies; Katherine always chose Stefan over Damon (even though she loved both Salvatore brothers), Stefan believed Katherine deserves peace and sympathized with her, Stefan had lingering feelings for Katherine, Stefan was Katherine's one true love, Katherine was still in ...
Anna was a vampire and the daughter of Pearl Zhu. She came back to Mystic Falls as early as the Night of the Comet Festival and watched Damon miss his every opportunity he had to open the tomb where her mother was.
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.
As a tough and self-centered character, Katherine does what she wants and doesn't appear to be afraid of anyone or anything. However, she has been frightened of Klaus for a long time, which emphasizes their tense and difficult relationship.
The events that led to Elena becoming a vampire began in season three. Elena suffers a brain hemorrhage, initially misdiagnosed as a concussion, and begins to die. To save Elena, Doctor Meredith fed her Damon's blood to heal her from the brain hemorrhage because vampire blood was the only way to heal her.
Literally the explanation is that Klaus was born a werewolf, so he can procreate. Every hybrid on the planet was born a werewolf. The CANON ANSWER is that he triggered the curse thus he can procreate. Tyler transitioned to a vampire thus he could not procreate.
This is, in part, due to Katherine realizing she is deeply in love with not only Elijah, but also Klaus, and the two brothers finally coming to understand that neither of them can give up Katherine to the other and live without her.
In 1490, when she was about 16 or 17 years of age, Katerina became pregnant by an unknown man, a Traveler, and her family disowned her for the shameful birth of an illegitimate daughter.
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.
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.
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.
Played by. Sage Maria Mikaelson (née Benedici) is a vampire and the wife of Finn Mikaelson. She is the daughter-in-law of Esther Mikaelson and Mikael Agnarsson through her marriage.