Most likely in Albania where Voldemort resided for over a decade after trying to kill Harry the first time. They probably found each other in the forest, and Voldemort was able to communicate with her because he can speak to snakes. Do you honestly think Nagini is a new thing?
People believe Voldemort might have met Nagini during his time without a body in Albany many years after she turned into a snake, which led to their unusual bond.
Nonetheless, despite her initially benevolent nature, Nagini's blood curse eventually turned her into a snake permanently. Though it is unknown if she became evil as a result of that, or was turned evil as a result of Voldemort turning her into a Horcrux. As a snake, Nagini was completely loyal to Lord Voldemort.
According to Harry Potter canon, Nagini met Voldemort (Ralph Fiennes) sometime before 1994, possibly in Albania - which is where Voldemort murders Bertha Jorkins (after torturing her to find the whereabouts of Barty Crouch Jr.) in order to turn Nagini into a Horcrux.
Bathilda Bagshot met a tragic end. She was murdered through the use of Dark Arts. After her death, her body was animated by Lord Voldemort, who used his snake, Nagini, to inhabit her corpse. This was done as a trap for Harry Potter, who Voldemort reasoned would visit Bathilda's cottage.
The Story of Nagini (+ How She Met Voldemort) - Harry Potter Explained
What did Nagini say to Harry as Bathilda?
When Harry and Hermione are on the first floor of Bathilda's house, Nagini (inside the corpse of Bathilda) tells Harry to 'Come! ' from the next room in Parseltongue. In reaction, Hermione jumps and clutches Harry's arm, and the two of them obey the command.
Who is Delphini raised by? After the deaths of her parents, Voldemort and Bellatrix Lestrange, Delphini is raised by Euphemia Rowle, who was not fond of her and allegedly only took her because she was offered a substantial amount of gold.
When Nagini bit Harry at Godric's Hollow while coming out of her disguise as Bathilda Bagshot, it is unknown how dittany was capable of stopping the bleeding, when Arthur and Snape both bled unstoppably, with Snape actually dying from it. Lily Potter's love protection, though, may immunise Harry from the venom.
Delphi was conceived from a liaison between Lord Voldemort and Bellatrix Lestrange. She was born in March of 1998 at Malfoy Manor, shortly before the Battle of Hogwarts.
Nagini was not only the last Horcrux to be killed, but also the last Horcrux to be created. In an interview, J.K. Rowling revealed that it was the murder of Bertha Jorkins that made Nagini a Horcrux.
By 1994, Nagini was seemingly trapped in snake form and belonged to Lord Voldemort, with whom she had a special bond largely due to becoming a Horcrux after her master had killed Bertha Jorkins that same year.
Notably, Voldemort appeared to be entirely unaware of this split, as he later created a seventh Horcrux in his quest to have six, and continued to target Harry Potter despite him now holding part of Voldemort's own soul.
There was a rumour that Nagini was the snake Harry released from the zoo in Harry Potter and the Philosopher's Stone. This was proven false, as Nagini is some type of viper while the snake in the zoo was a boa constrictor. Furthermore, the snake was given a male voice in the film, while Nagini is female.
Pettigrew mixed up a potion for Voldemort using unicorn blood and the venom of Nagini. With this potion, they were able to create a new body for Lord Voldemort to finally return to. However, this body was not what Voldemort needed to return to his fearful leadership form. Instead, it was that of a scaly, hairless baby.
But now we know Nagini was no simple supervillainous pet, but a human woman cursed with the “Maledictus” blood curse, which, according to Rowling, is a female-only inherited condition which grants the affected individual the ability to transform into an animal at will, until one day, the transformation becomes ...
In “The Goblet of Fire,” Voldemort explains to Harry that he found “the essential ingredients for true rebirth” by drinking a potion of unicorn blood and Nagini's venom. She also sustains Voldemort with milk, which parallels breastfeeding.
Is Nagini in Fantastic Beasts the same as Harry Potter?
So why is this a big deal? Because Nagini also happens to be the name of another iconic “Harry Potter” character — Lord Voldemort's magical, extremely murderous pet snake. Well, just in case there was any doubt, “Harry Potter” creator Jk Rowling confirmed the two characters are one and the same.
Nagini, Voldemort's snake, then eats Professor Burbage's dead body. A story about her "resignation" from Hogwarts appears in the Prophet, but members of the Order of the Phoenix discount it, as they are unable to locate her anywhere after that.
In the play "Harry Potter and the Cursed Child," which has become part of "Harry Potter" canon, it was revealed that Bellatrix conceived a child with none other than Lord Voldemort.
Lord Voldemort had no wife he and Bellatrix just made a baby together. Voldemort couldn't love anyone. But the girl mother (In cursed child) is Bellatrix Leatrange.
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.
Her body disappears and gives way to Nagini, while Hermione finds what seems to be the snake's changed skin. Nagini's impersonation of Bathilda is, nevertheless, an intended trap by Voldemort for Harry, which might have put his most important Horcrux in jeopardy.
It also needed to be recovered "under conditions of need and valour". To fulfil these conditions, Snape deposited the real sword in a frozen lake in the Forest of Dean and used his corporeal Doe Patronus to guide Harry to the sword.
Hermione comes out with two cups of tea and a copy of Rita Skeeter's book—she'd found it in Bathilda's house with a note from Skeeter, thanking her and claiming that she said everything the book contains, even if she doesn't remember talking.
