He sent for the teachers of the different systems of religion, to explain to him the peculiarities of their faith.

First came the Mohammedans from Bulgaria; then the Jews from Jerusalem; then the Christians from the papal church at Rome, and then Christians from the Greek church at Constantinople.

The Mohammedans and the Jews he rejected promptly, but was undecided respecting the claims of Rome and Constantinople.

He then selected ten of the wisest men in his kingdom and sent them to visit Rome and Constantinople and report in which country divine worship was conducted in the manner most worthy of the Supreme Being.
The embassadors returning to Kief, reported warmly in favor of the Greek church.

Still the mind of Vlademer was oppressed with doubts.