For Sandrock there are 136 on Yasni with different names.
Among the most common last names on Yasni Sandrock is on position 4391.
The name / Sand Rock / is created on the occasion of Kreuzüge ca.1248. Original meaning Rocca Santa (holy rock) were participants in the crusade for the return with a coat of arms (as a rock represented Calvary with a cross and an Islamic crescent on a blue background next to it) verliehen.In subsequently developed over the name Santroc, Santoroc, to Santrock Sandrock Santoro in the German and the Romance language area.
(Sent from: Dr.Klaus Sandrock)