Schubeck line from the Monarchy came from the von Schönburg line. A law was passed in 1918 to strip nobles of their titles and change the spelling of their name. When the monarchy fell; most likely reasoning for the name changes were for protection and required to become a new US citizen. Charles Leopold was Leopold von Schönburg. The nobles that fled to America were in danger and did leave families behind.This is why you see variations. People spelled it as they could say it back then. Just as when some of the Von Habsburgs came over to the US the title was dropped and the spelling of their name changed. Some are Von Hapsburg, though the true name is Von Habsburg with their rightful titles. The law of 1918 therefore, explains a lot. Many noble names were changed several times, and many of the new America citizens were required to do so. A born name is not complete as all names and titles were given at a child's christening/baptism by customary law.
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