Linguistic issue

[Amarantine]

the first name Brajan-Brayan and Trajan-Trayan

Trayan is I supposed originated from Romans time. But what about Brajan which is not Slavic at all (Saxon?! may be...).

So, if someone could help me with this and is these names apperas in the past of other Slavic countries?

[Guapo]

Brajan=Celtic. Trajko is a name given in Serbia proper too. I have a friend named Rajan. His mother named him after some American Soap character(Ryan)

[Tabiti]

Brayan here no, but Trayan (Траян) I've heard as far as I remember. Trajan was a Roman emperor.