Deadliest bladed weapon attack ever

What's the deadliest confirmed single incident where a bladed weapon was used? I would've thought that must be quite easy to answer, but theres very little information regarding this, especially because for many of these theres barely any sources. From the informations that I have found it seems the deadliest such attack happened quite recently in 2022: Phanya Khamrab entered a nursery and used a knife to kill 22 children. The other victims were shot, but killing 22 is the highest number of knife victims I've found in a single incident. William Unek killed more with an axe, but that was combined in two attacks years apart. I know theres a single newspaper mention from like 1900 of a guy killing 30 in a forest, but that just an anecdote told by some guy, no proof or other sources at all. And theres a legend in japan that a lord killed 100 prostitutes with his sword, also not verifiable.

Any other ideas?

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