Parallel
Revelation 17:11
Patriarchal Greek New Testament (1904) · Berean Standard Bible
καὶ τὸ θηρίον ὃ ἦν καὶ οὐκ ἔστι, καὶ αὐτὸς ὄγδοός ἐστι, καὶ ἐκ τῶν ἑπτά ἐστι, καὶ εἰς ἀπώλειαν ὑπάγει.
The beast that was, and now is not, is an eighth king, who belongs to the other seven and is going into destruction.