As an heir of Slytherin and a Parselmouth, she would've been of interest to Voldemort. Even if she were only a baby, Voldemort was willing to believe that Harry Potter could be a threat at a year old, so it's entirely plausible he could believe Delphi would be an asset to his cause.
Harry proceeds to tell Delphi that she will always be an orphan and they return to the correct time, where Delphi would be taken to Azkaban. After Voldemort's death in 1998, Delphi became Salazar Slytherin's last known heir.
Delphini (b. March 1998), known by the nickname Delphi, was a British half-blood Dark witch, the daughter of Tom Riddle and Bellatrix Lestrange. Being the only child of Lord Voldemort, she was able to speak Parseltongue, and she became the only known living heir of Salazar Slytherin after the demise of her father.
Here's how the character fits into Harry Potter canon. Harry Potter and the Cursed Child unearthed many revelations but none were as shocking as the introduction of Lord Voldemort's daughter, Delphini. The young Dark witch, nicknamed Delphi, was the product of Voldemort's romantic relationship with Bellatrix Lestrange.
Delphi did not go to Hogwarts. She was kept at home with her adopted guardian (most likely home-schooled or self-taught). Given how adept she was at using magic later on in life, she's evidence that you don't need to go to Hogwarts to be a witch...
Much like Harry and Teddy Lupin, Delphini grows up as an orphan because both of her parents passed away during the Battle of Hogwarts. Unlike Teddy, however, she grows up without a loving support system. Rodolphus was sent to Azkaban, leaving Delphini in the care of Euphemia Rowle.
Delphini's birth was one of the most well-guarded secrets of Voldemort and his servants. She was sent to live with Euphemia Rowle, who only raised her because she was offered gold, though we don't know who paid her.
"The Lestranges should be here," said Voldemort quietly. In short Lord Voldemort was the sperm donor for the Lestranges as Bella's husband Rodolphus Lestrange was firing blanks. Hence why they had no child so Lord Voldemort said he would father a child with Bellatrix to help out his best deatheater friends.
Delphi's whole existence was hidden from the Malfoys, even though she was born under their roof. She was seemingly smuggled out of the manor to be raised in secret by someone else. There was no way of Narcissa knowing. If she knew, she may have raised her… as her sister's daughter.
Before her death, Bellatrix secretly gave birth to an illegitimate daughter named Delphini, whom she conceived with her beloved master, Lord Voldemort. Delphini was conceived sometime after the Battle of the Department of Mysteries in 1996 and before the Skirmish at Malfoy Manor in 1998.
We also meet Tom Riddle, who is, as it turns out, the heir of Slytherin. Present only in spirit, he has all the same been controlling Ginny, and having her act as Slytherin's heir.
Although, as Dumbledore says, Harry's ability to speak Parseltongue is a skill accidentally transferred by Slytherin's actual heir, Voldemort, when he tried to kill Harry as a baby. So perhaps this is one myth with a bit of truth to it.
The girl was played by Chloe Rich in the film adaptation of Harry Potter and the Order of the Phoenix, and in Harry Potter and the Deathly Hallows: Part 2.
At Hogwarts, she, along with her sisters, was sorted into Slytherin. It is suggested in the novels that, as a student, Bellatrix associated with a group of students – including Rodolphus Lestrange, Severus Snape, Avery, Evan Rosier and Wilkes – who nearly all became Death Eaters.
Delphini is stronger than Harry Potter for several reasons. She is the daughter of Tom Riddle and Bellatrix Lestrange. Being the only child of Lord Voldemort, Delphi became the only known living heir of Salazar Slytherin after the demise of her father. ... DELPHI unleashes a bolt from her hand.
He did not love anyone, and did not care to be loved. He felt nothing for his family, and only wanted his friends in school to rally around him because he wanted to hold power over them. Bellatrix Lestrange was obviously in love with him and worshiped him, but he only cared for her servitude, not her.
Draco's refusal to reveal Harry's identity to Bellatrix was not because he liked him. It was because he believed that Harry was the only chance they had at defeating Voldemort. At first, Draco admired and revered Voldemort until he threatened his family's safety.
In the Cursed Child climax, Delphi disarms Harry. Harry has the Elder Wand in his possession. The Elder Wand passes allegiance by disarming (As in Draco Malfoy and Dumbledore).
Therefore Harry would be considered only 'half' wizard, because of his mother's grandparents." Delphini's paternal grandfather, Tom Riddle Senior, was a muggle, so she is a half-blood.
By the time he was Lord Voldemort (despite what I said earlier about the graveyard scene), Tom Riddle had become fully and completely asexual. The Death Eaters are characters featured in the Harry Potter series of novels and films. such as Severus Snape, Lucius Malfoy, and Peter Pettigrew had appeared in.
No, we don't know what spell did Molly use to take down Bellatrix, but it certainly wasn't Avada Kedavra. Whatever spell she used, it didn't disintegrate Bellatrix either.
The biggest revelation in Harry Potter and the Cursed Child was that Lord Voldemort had a daughter with Bellatrix Lestrange, who was named Delphini.
Adelena Potter (Wife) Albus and Adelena first meet during the Hogwarts Sorting Ceremony and got married during the pairs sixth year at Hogwarts.
Delphini (better known as Delphi) is the main antagonist of Harry Potter and the Cursed Child. She is the secret daughter of Bellatrix Lestrange and Lord Voldemort.
In an interview, J.K. Rowling revealed that it was the murder of Bertha Jorkins that made Nagini a Horcrux. After Voldemort discovered his Horcruxes were in danger, Nagini was magically protected, described as being encased in a 'starry, translucent sphere'.