

Tradition holds that Abraham Gershon Kitover the son of Reb Ephraim MiBrody and his wife is a descendant of the Shach
HaRav Shabty Ashkenazi HaCohen Katz, the "SHaCH"
see http://en.wikipedia.org/wiki/Abraham_Gershon_of_Kitov
But if he were a male descendant he would have to be a Cohen
So maybe the Shach is the maternal grandfather?
http://www.chewra.com/keshetnew/kweb/kategorie.aspx?kid=201
http://www.chewra.com/keshetnew/kweb/kategorie.aspx?kid=202
http://www.yivoencyclopedia.org/article.aspx/Shabetai_ben_Meir_ha-K...
http://www.holesov.info/fotogalerie-1
https://www.youtube.com/watch?v=a18LioIHrSM
https://www.youtube.com/watch?v=SlVzcJrkD3s
https://www.youtube.com/watch?v=Eus_MNVTTy8
https://www.youtube.com/watch?v=BVbcd781oMA
https://www.youtube.com/watch?v=Kkr5LXkd_jc