Out of all of Perseus’s 9 children only two weren’t directly stated to also be children of Andromeda, but no other mother is mentioned either. It could just be bc very few sources talk about them.
Autochthe’s existence is only mentioned by one author, Tzetzes (a Byzantine and therefore VERY late source) in a couple of his writings. She is mentioned as the daughter of Perseus, no mother mentioned. She’s also the wife of Aegeus (Theseus’s father) and had several unnamed daughters by him. Considering that none of the writings referencing her center Autochthe but rather the genealogy of the figures around her, it isn’t unlikely she was Andromeda’s daughter and that we just don’t have any surviving source directly stating her as such. But she could just be a “medieval OC” like Merros who I don’t really consider legitimate bc he’s likely just misspelled Mestor, I want Andromeda to have more than one daughter ok? Let me keep her.
Cynurus’s existence is mentioned exactly once, ONCE, in Pausanias Description of Greece (a more legit source than Tzetzes), where he led colonists from Argos to Cynuria. That’s it. It’s likely he’s also Andromeda’s son and it’s just that no source explicitly stated so survives.
Idk why I felt the need to talk about this, it’s just that I (as well as y’all) were always impressed by Perseus being one of the few ancient heroes to never cheat, but I wanted to be extra sure so I looked it up instead of just passing it around without thinking.