List of Famous people with last name Supplingenburg
Gertrude of Süpplingenburg
Gertrude of Süpplingenburg was, by her two successive marriages, Duchess of Bavaria from 1127 to 1138, Margravine of Tuscany from 1136 to 1139, and Duchess of Saxony from 1137 to 1138, Margravine of Austria and again Duchess of Bavaria until her death. She was regent of Saxony during the minority of her son in 1139–1142.
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