Aberforth's son is Aurelius Dumbledore, born after he fell in love with a girl in Godric's Hollow. However, the girl was sent away, either before or after Aurelius's birth. His son was adopted by Mary Lou Barebone and renamed Credence Barebone.
Aurelius was an illegitimate child of Aberforth's. His mother is killed, and as a result Aberforth is unable to care for his son. Credence is taken to America and put up for adoption, a fact known to no one but Leta Lestrange (Zoe Kravitz).
In around 1901, Aberforth had a son, Aurelius Dumbledore with a girl that he fell in love with in Godric's Hollow. However, the girl was "sent away," presumably by her parents, either before or after Aurelius's birth, although Albus was aware of rumours that there was a child.
During the funeral, Aberforth broke Albus's nose. For ninety-eight years afterwards, the results of this duel haunted Albus. He never knew who had in fact uttered the spell that had killed his sister. This had produced fear in Dumbledore, causing him to take forty-six years to finally stop Grindelwald.
During that summer, Dumbledore had neglected both his brother and his sister and Aberforth soon let him know about it. Aberforth was set to return to Hogwarts and was fed up with Dumbledore's plotting with Grindelwald – in addition to being concerned about Ariana's care.
The Entire Life of Aberforth Dumbledore (1884 - 2022) - Harry Potter Explained
Did Aberforth ever forgive Albus?
He didn't forgive his brother and continued to resent him for years, despite Albus's immense feelings of regret, of which Aberforth did not know until Harry revealed it to him, which allowed Aberforth to finally forgive his brother. That same summer, Aberforth fell in love with a girl from Godric's Hollow.
Harry recognizes the man's blue eyes as those he's been seeing through the magic mirror, and he realizes that this man must be Aberforth, Dumbledore's brother, and that Aberforth was the one who sent Dobby.
Although Aberforth was a brother of Albus, he did not study the art of magic as much as Albus did. He cared more for the Dumbledore family than Albus did and abandoned his studies to help them out. He was powerful, but not quite as powerful as Albus.
Since Harry was looking at the mirror shard before Snape's Patronus appeared, and the inside of the Hog's Head was seen, the most likely explanation is that Aberforth was working with Snape, and that Albus may have told him of Snape's true allegiance before he died.
1851 – summer 1899) was a Muggle-born witch and the wife of Percival Dumbledore. She was also the mother of Albus, Aberforth, and Ariana Dumbledore. When her daughter Ariana was fourteen years old she lost control of her magic, causing an explosion that killed Kendra, as she had become an Obscurus.
The character had previously referenced his brother Aberforth, and in Harry Potter and the Deathly Hallows, it is revealed that Albus is three years older than Aberforth.
Fantastic Beasts: The Secrets of Dumbledore confirmed that Credence Barebone/Aurelius Dumbledore (Ezra Miller) is the new Snape (Alan Rickman) through a very familiar line delivered by Aberforth Dumbledore (Richard Coyle). Fantastic Beasts 3 finally shed light on the Credence being Aurelius Dumbledore plot twist.
Losing Aurelius would be too painful for Aberforth to bring him up ever again, and Albus has been known to discuss very few personal matters with the Harry Potter characters. It thus makes sense that Credence is never mentioned in Harry Potter: he is the Dumbledores' guilty secret.
Aberforth met Credence's mother the same summer that Albus and Grindelwald met. Now, while living as part of Grindelwald's followers, Credence began to write messages to Aberforth through a mirror because he was desperate to come home – though to begin with, he didn't know he was writing to his father.
Fantastic Beasts 3 reveals that Credence is Aberforth Dumbledore's illegitimate son. Since Grindelwald was telling Credence the truth about his name being Aurelius Dumbledore, it seemed logical that he's one of Albus Dumbledore's siblings.
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 ...
Because of this internalized hatred — as well as physical and emotional abuse from Mary Lou — Credence repressed his powers and became an Obscurial. An Obscurus is a parasitic magical force that leeches onto a young witch or wizard until they die, usually young.
Really though voldemort would have killed him easily, as could many of the death eaters I suspect. He isn't is brother and never had any interest in being like him it seems. Aberforth himself seems to know it, having given up the fight by the time Harry meets him.
Dumbledore tells Newt Scamander (Eddie Redmayne) that in 1899, during the same summer that Albus fell in love with Grindelwald, Aberforth also fell in love with a woman from Godric's Hollow. They had a baby boy together, but the woman was sent away before she gave birth, and Aberforth never got to be a father.
Honestly, Hermione knew Dobby was a lost case... nothing could have revived Dobby after the attack or she would have definitely helped Harry with Dobby considering she was the girl who started S.P.E.W(Society for the Elfish welfare) and fought for elf rights. There was nothing to be done at that point.
Harry asked for help while looking at a two-way mirror; Aberforth had the other mirror. He sent Dobby to rescue them; the house-elf did so, stating that "he would always be there for Harry Potter", but was killed by Bellatrix Lestrange.
To defend her students, McGonagall casts a series of spells Snape's way, but he manages to evade all of them before flying away. But what McGonagall doesn't know is that Snape is actually a double agent working for Dumbledore, so he has no intention of harming her.
