Jordan (bishop of Poland)

The hypothesis, rejected by Wladyslaw Abraham,[3] about his origin in the Bishopric of Lüttich in the Holy Roman Empire (now Liège in Belgium).

Another hypothesis assumes that he could have been an Italian associated with the Patriarchate of Aquileia, which extended its jurisdiction over the Slav peoples in the north-western Balkans.

Some historians believe he was originally a priest accompanying Dobrawa in 966 to Mieszko I, or that he was an auxiliary bishop of the diocese of Regensburg, which was at that time subject to the Kingdom of Bohemia (now the Czech Republic), (this is disputed by some[6]) or a monk sent to the Polish mission directly by the emperor.

Some have questioned if his base was Poznan at all, either suggesting Gniezno or that he did not have any permanent establishment, but only traveled with the duke's court around the country.

[11] About his work as a Polish bishop, we have only a generic relation by Thietmar of Merseburg of his "tireless efforts [which] induced them in word and deed to the cultivation of the Lord's vineyard."