The Riurikid Relationship

de bene esse: literally, of well-being, morally acceptable but subject to future validation or exception

http://www.medievalists.net/2013/12/29/the-riurikid-relationship-with-the-orthodox-christian-church-in-kievan-rus/

The Riurikid Relationship with the Orthodox Christian Church in Kievan Rus - Medievalists.net

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Prior to the late tenth century, the princes of the Riurikid dynasty were rulers over the loose collection of pagan Slavic tribes and minor city states that were