For Rosehr there are 2 on Yasni with different names.
Among the most common last names on Yasni Rosehr is on position 4525.
Rosehr is the Germanized form of a French surname, its exact spelling escapes me, possibly de Rosier de Rosière or de Roser (the de = of later fell away in Germany, see below). These were noble Huguenots from southern France near Montepellier after Germany (Schleswig Holstein and Prussia) fled, and there levies their titles of nobility, because at that time was not allowed to operate according to the social norm as a nobleman.