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).
It is explained that Credence is the illegitimate son of Albus's younger brother, Aberforth (Richard Coyle). His real name is Aurelius Dumbledore. Aberforth's wife was murdered, and Aurelius was raised under the name Credance as an orphan.
It turns out that Credence isn't Albus' brother — he's his nephew. "The Secrets of Dumbledore" circumvents the timeline issues by revealing that Credence — or rather, Aurelius — isn't Albus' brother. He's Aberforth's son, which makes him Albus' nephew.
He's not. He's Corvus Lestrange, the son of Corvus Lestrange Snr and his second wife, Clarisse Lestrange née Tremblay. He has an older half-sister, Leta, from his father's first marriage with Laurena Kama. At some point, Credence was separated from his birth family at a young age.
So let's begin with the issue of the timeline, which has caused the most issues for fans. Credence being Dumbledore's brother just doesn't fit into the timeline. However, Credence being Dumbledore's son in Fantastic Beasts does fit into the timeline.
Dumbledore reveals how thoroughly he loves Harry. Harry is brave, and Dumbledore is proud as any father would be. More than that, Dumbledore succumbs to a parent's weakness; he cares more about Harry's happiness and wellbeing than the wizarding world he is trying to protect.
In the new clip from Fantastic Beasts: The Secrets of Dumbledore, Albus Dumbledore can be seen admitting to being in love with Grindelwald.
Credence is Snape's Maternal Grandfather - Harry Potter Theory Explained in Hindi.
He is the antihero with a tragic past and noble intentions - and Aberforth just confirmed it. 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).
Credence's costume and hair change are so similar to Severus Snape's that it foreshadows his path in Fantastic Beasts 3 — consequently ruining his ending. Grindelwald abused Credence's need for an identity, telling him whatever he wanted to hear to secure his loyalty in his war against Dumbledore.
Given that the third film takes place in the early 1930s, we still have a little over a decade to go until the legendary duel in 1945 that netted Albus the Elder Wand (one of the Deathly Hallows) and saw Grindelwald trapped in his own castle until he was murdered by Voldemort years later.
Without anyone's knowledge, except Newt, Credence turned out to have survived, because an Obscurial could not be killed while in their Obscurus state.
Credence may well be related to Voldemort, but it would have to be through Voldemort's grandmother. That also means the mystery woman must've had a second child: Merope Gaunt, born in 1907. It's entirely possible that Aberforth could have sired a child with Voldemort's grandmother.
Due to his step-mother's cruelty and hated towards magic and being emotionally unstable, Credence became the Obscurial whose Obscurus wreaked havoc in New York City. After being promised by Gellert Grindelwald he would reveal who he truly is, Credence became a member of the Acolytes.
Credence captures the Qilin and returns to Grindelwald, not realising that two were born that night. Grindelwald later orders Credence to murder his uncle Albus Dumbledore in Berlin, claiming that the Dumbledores knowingly abandoned him.
Fantastic Beasts: The Secrets of Dumbledore finally revealed that Credence (Ezra Miller) is Aberforth Dumbledore's (Richard Coyle) long-lost son, but his mother could very well be a Gaunt, making Credence related to Voldemort (Ralph Fiennes).
Recall that, as the “Half-Blood Prince,” Snape was born to a witch and a Muggle. His mother Eileen Prince was born in the 1930s. As Fantastic Beasts is set in 1926, the timing checks out for Credence to be her father.
His paternal grandparents were Livia and Septimus Snape.
Snape was Dumbledore's man from the moment Lily was murdered. Over the years he did whatever he could to try to make up for his past as a Death Eater, and he followed Dumbledore – for the most part – without question.
They are from different families. Though Queenie might be related to Anthony Goldstein. Yeah, there are some similarities between them like they both were half blood and what u said but they are not related in any way. Also, Queenie was a naturally born legillimen while Snape had acquired that skill.
Credence Barebone
At the end of the last film, Grindelwald gave Credence a wand to channel his magic and revealed that he is actually Aurelius Dumbledore.
But apart from Credence's identity, none of this was true. In Fantastic Beasts: The Secrets of Dumbledore, Credence attempts to kill Albus but fails. As the phoenix bird's ashes drop onto him, Albus knows for certain that Credence is in fact Aurelius, Aberforth's long-lost son.
Albus is the younger brother to James Sirius Potter and the older brother to Lily Luna Potter. He is also the husband to Adelena Delacour and later on the father to Alexis Potter and Savanna Potter.
At one point in the play, Harry's son Albus uses Polyjuice Potion to disguise himself as Ron. When he encounters Hermione, this means he has to kiss her to keep up the charade. Nothing wrong with that.