Petros 123 was kourator of the basilika ergodosia; owner of seals all dateable to the ninth century (to the first half, according to Seibt), which reveal that while holding this post he rose in dignity from basilikos silentiarios to hypatos and then to basilikos spatharios; see Zacos and Veglery, pp. 1265, 1268 and 1768, and Winkelmann, Rangstruktur, pp. 33ff. (citing Seibt for the date of the seals, but querying whether the sequence of dignities proposed is correct for this date, and so casting doubt on the identification of the seal owners as one person).

Basilikos silentiarios and kourator of the basilika ergodosia: Zacos and Veglery 3164 = Laurent, Corpus II 640. The name and titles read: Πέτρῳ βασιλικῷ σιλεντιαρίῳ καὶ κουράτορι τῶν βασιλικῶν ἐργοδοσίων.

Hypatos and kourator of the basilika ergodosia: Zacos and Veglery 2301. The name and titles read: Πέτρῳ ὑπάτῳ καὶ κουράτορι τῶν βασιλικῶν [ἐργοδοσίων] . The last word is no longer legible, but is probable, according to Zacos and Veglery.

Basilikos spatharios and kourator of the basilika ergodosia: Zacos and Veglery 2309A. The name and titles read: Πέτρῳ βασιλικῷ σπαθαρίῳ καὶ κουράτορι τῶν βασιλικῶν ἐργοδοσίων.

(Publishable link for this person: )