You may be thinking of this one, but it's not very recent and a lot has been learned since.
http://dienekes.blogspot.com/2007/02/ancient-basque-dna.htmlThey found M153 there, but as it's turned out, M153 isn't nearly as early as once believed, and these remains are within a couple hundred years of the calculated age of that mutation. Kind of neat, actually -- but not 4000 ybp.
There was a 2006 paper about mtDNA from the same Basque cemetery, but it didn't discuss R1b as far as I know.