Recently I've been doing some research into the origin of names. I came across this one and every source I found labelled "origin unknown or origin uncertain". Is this a Slavonic name or what?
I must say that this was my first guess too (because of the word final -jan (or -yan).I'm guessing Armenian.
If you mean the first name it cannot be Armenian just due the ending, because such ending is typical only for the surnames. In Grabar (Ancient Armenian) it was Genitive Plural ending and expressed possesiveness. In modern Armenian it's a suffix making adjectives from the nouns. Such suffixes as English -an and French -ien are of the same IE origin.I'm guessing Armenian.