Every Monday we will post an entry that hasn’t yet been published with a view towards harnessing the collective onomastic power of the internet. If you have any thoughts about the name’s origin, other variants it might be related to, other examples of its use, etc., please share them in the comments! If you wish to browse other Mystery Monday names, there is an index.
But what is it a diminutive of? One possibility is Radoslav, a moderately popular name throughout Eastern Europe. But perhaps something else that we haven’t thought of — do you have a suggestion? Please share in the comments!