Born as Bellatrix Black, Bellatrix married into the Lestrange family, meaning she and Leta aren't related by blood. That makes Leta related to Bellatrix's husband, Rodolphus Lestrange, although that connection is no easier to find.
Leta Lestrange is therefore directly connected to the most fascinating of wizard families, the Ancient and Most Noble House of Black. Generation X of the family — brothers Sirius and Regulus and their cousins Bellatrix, Andromeda, and Narcissa — present a fascinating microcosm of the entire wizarding war.
According to Queenie, Leta was a "taker" rather than a "giver", and she did display a selfish streak throughout her youth: Leta swapped her baby half-brother Corvus for another infant simply because she couldn't tolerate his crying; at Hogwarts, she allowed Newt to take the blame and be expelled for her own childish ...
They were close friends in the wake of not having anyone else. Through it all, even thru her engagement to his brother, Leta still loves Newt. When she's about to attack Grindelwald, she turns and ambiguously says "I love you" at such an angle that it could be to Newt or Theseus.
Leta insisted that Credence was not her half-brother, as the real Corvus Lestrange died. Leta recounted her father sending her and her brother to America on a ship. Wanting to relieve herself of her screaming brother, Leta swapped him with another baby on the ship, that baby being Credence.
Mary Lou Barebone (played by Samantha Morton) is a fanatical No-Maj campaigner against wizardry and the abusive, adoptive mother of Credence, Chastity, and Modesty.
However, it's entirely possible that she loves both brothers and is using the “I love you” moment as a way of expressing that. Similar to Ron's sacrifice, which motivates Harry and Hermione to work together more than ever, Leta's sacrifice brings together the Scamander brothers to fight Grindelwald.
4 Protego Diabolica Burns Away the Caster's Enemies
The spell kills Leta Lestrange at the end of the movie. Enhanced into a gigantic dragon, it would have destroyed Paris, if not for the combined efforts of Newt and Theseus Scamander, Tina Goldstein, Nicolas Flamel, and Yusuf Kama.
Throughout the film, Leta hints that she has a horrible, dark past involving her dead brother. Eventually, it's revealed that when she was a child living in London, her father sent her and her brother away to America. The ship they were on sank and her infant brother perished – and that ship, was the Titanic.
She married Rodolphus Lestrange after leaving Hogwarts "because it was expected of her" to marry a pure-blood. However, Rowling stated in an interview that Bellatrix truly loved Voldemort.
Leta's boggart was the form of her baby brother sinking (wrapped in a veil). It's shown in the film that when Leta is on a ship with her newborn brother and a woman(either her mother or a nanny), she was irritated of his crying and swapped him with another baby who was sleeping peacefully.
Credence is that other unnamed baby. So for a time he definitely was Corvus Lestrange, even though he actually was not. At some point after that, this young Credence was given up or lost by the Lestranges — it's still not clear why he ended up being adopted by the woman from the first “Fantastic Beasts” movie.
Credence was adopted as a child, and longed to discover his true identity. In The Crimes of Grindelwald, he thinks he's found it, but as it turns out, Credence isn't Corvus Lestrange as many had thought. It's left to Grindelwald to tell Credence his birth name: Aurelius Dumbledore.
Bellatrix is a Lestrange by marriage to Rodolphus Lestrange, a fellow Death Eater who has a Death Eater brother, Rabastan. All three of them were confined to Azkaban for the torture of Neville Longbottom's parents.
He marries Narcissa Black and together they have one son, Draco, who is the first Malfoy family member introduced in the series. The Malfoys are related to the Black family through Narcissa (a first cousin of Sirius Black, Harry's godfather), which makes Draco a nephew of both Bellatrix Lestrange and Andromeda Tonks.
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.
She is the fiancee of Theseus Scamander and a former love interest of Newt Scamander, daughter of Corvus and Laurena Lestrange through the Imperious curse, and half-sister of Yusuf Kama.
Death. Fifty-three years after his defeat, Grindelwald was slain in his prison cell by Lord Voldemort, who was searching for the Elder Wand for himself. It was only during the confrontation in Grindelwald's cell that Voldemort learned Albus Dumbledore had claimed the wand long ago.
Leta was classmate of Newt Scamander at Hogwarts. She was often bullied, and Newt was always defending her. They developed close relationship, but then parted ways when she led explosion at Hogwarts, blamed Newt and got him expelled.
Newt would go on to marry Porpentina Goldstein, an American witch, and together they had at least one child, presumably a son. The Scamander family was "not impressed" by Newt's career in Magizoology. Rolf Scamander, Newt and Tina's grandson, married Luna Lovegood sometime between 1998 and 2011.
As part of the Lestrange family, Leta is endlessly bullied and isolated during her time at Hogwarts for her infamous surname. Students and teachers alike assume her to be evil, and deny her the chance to prove them otherwise. Add this to her social awkwardness and Leta starts to believe that she is, indeed, bad.
Children: Newt and Tina have at least one son. Grandchildren: At least one grandson, Rolf Scamander, who married Luna Lovegood. They have twin sons, Lorcan and Lysander.
