Not sure. Was trying to reconcile a near-east haplogroup with a heavy north-west european genealogy and found reference to (I think) Danish royalty starting with a turkish prince. Further research along those lines showed several examples in several countries. This was several years ago I was playing with this. Doubt I could easily recreate the research.
If it involves royal geneaologies it probably dates to a later period than what I am thinking of. Scythians and Sarmations certainly, and possibly some Hunnic (Turkic) made there way there, probably as fugitives. These are early movements though, and traced largely through art, artifacts and burial customs rather than DNA samples. Interesting stuff.