Victorinus of Poetovio
"And the beast that you saw is of the seven," because Nero ruled before these kings. John states, "and is the eighth," because he will come soon and is counted in the eighth place.
Since the end will be in him, he adds: "and he goes to destruction." For ten kings received royal power (cf. Rev 17:12). When Nero moves from the east, they will be sent by the city of Rome with their armies.
He calls them ten horns and ten diadems. Daniel also indicates: "Three were plucked up by the roots from the former horns" (Dan 7:8). These are the first three leaders whom Antichrist will kill.
The other seven will hand over to him glory, honor, throne, and power (Rev 17:13). Of them he says: "They will hate the harlot," meaning the city, "and will burn her flesh with fire" (Rev 17:16).