First of all, keep in mind that the time of the movie is 1927. It is known that Albus Dumbledore was born in 1881. In June 1899 (between 17 and 18, his birthday in the summer, but the exact date is unknown before or after June) Mother Kendra died of a magical riot by her sister Ariana (b. 1885). Ariana's riots can be traced back to being bullied by three Muggle boys as a child. Dumbledore's father, Percival, was imprisoned in Azkaban for educating Muggle cubs who bullied his daughter, and died in Azkaban around 1890. And Ariana himself was mistakenly killed in the summer of 1899, in a battle between Lao Deng, his younger brother, and Lao Ge, who is closer than his brother.
Fantastic Beasts 2 ends with Credence being Aurelius Dumbledore, Dumbledore's brother.
1. The first explanation that came to my mind was that Credence was the youngest lost son of Dumbledore. However, Credence was born in 1901. According to the time of the death of Lao Deng's parents, it is unlikely that it was his own younger brother. unless! Rowling changed the time of his father's death so that he could have an illegitimate child in Azkaban [Khan], but it is not impossible, after all, Minerva appeared in Fantastic Beasts 2, who was originally set to be born around 1936 .
2. Another possibility is that Credence is not a member of Dumbledore at all, and Lao Ge is relying on his mouth to fool Credence, who is eager to know his background, to join the team. After all, there was a rumor in the magic world that Credence was the cub of the Lestrange family, and then the family tree brought out by Leta proved that the rumor was false, causing Credence to want to know who he really was. The only beneficiaries of this series of rioting operations were Grindelwald, and the middle of the family tree fell into the hands of Grindelwald's group. So has it been tampered with? Did Leta know that his brother wasn't dead? These are unknown. But given the fact that he was reborn with the silly bird beside Credence in the end to prove that he is a Phoenix, and the fact that Phoenix always goes to the Dumbledore family's side, this kind of speculation is less likely.
3. There is also a possibility that Aurelius and Ariana are directly related. In the first part, everyone knew the relationship between the silent and the silent host and the dark magic power parasitic on the body (for example, it is similar to Eddie and Venom, but the silent is more uncontrollable). Everyone knows that Credence is a silent person, so could the silent one be the parasitic one on Ariana back then? Here comes a question that Rowling has left unanswered: Is Ariana the mute? Ariana never went to school at Hogwarts. During the Harry Potter era, fans speculated that Ariana was a squib. But after Fantastic Beasts 1, another widely-recognized claim emerged that Ariana was the mute. If she really is, then Grindelwald's original intention of approaching Xiao Deng may not be simple (but everyone knows the ending, but it still can't resist Xiao Deng's charm and sinks down, seeing Xiao Deng by mistake for life) . In addition to this, there is also a technical question: can silently re-parasite after the death of the host? if it is possible. Is the so-called Aurelius a new name given to Ariana's silent host, Credence, by Grindelwald himself? So what does he mean by finding Aurelius? Do you just want to conquer the world through the power of the silent ones, or does it also mean "to find Ariana and realize the ideals of her youth to show Albus"? [Also, I have nothing to do in the past few days, so I will use the names of these people. After all, Rowling loves to do this, but there is no progress. Let’s find out together.]
4. Aurelius is the cousin of the old Deng family. Maybe there are countless cousins in his family. Suddenly a distant cousin appeared? It's not impossible for Rowling to write this in a different way. But at present it is known that old Deng's relatives have only one aunt/aunt (unclear which side) who has never married.
5. In fact, the first reaction of a layman like me when I saw the final reveal of my identity in the cinema was: The husband and the wife were born by a surrogate? ? ? The pregnant mother ran away with the cub? ? ?
Additional conjectures are welcome.
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