The von Holstein (the House of Schaumburg) family came into contact with Charlemagne through the marriage of Adolf II, Graf von Holstein to Mechtilde von Schwarzburg-Käfernburg herself a descendant of Charlemagne thru Louis the Pious.
Adolf II was a son of Adolf I, who was the first Graf von Schauenburg from 1106 and the second Graf von Holstein from 1111 and the progenitor of House of Schaumburg.
Mechtild's descent :
- Charlemagne, Emperor of the Holy Roman Empire 800-814 - Hildegardis
- Louis I 'the Pious', Emperor of the Holy Roman Empire 814-840 - Irmingard|Ermengard
- Lothar I, Holy Roman Emperor (823-855), King of Lotharingia - Irmgard de Tours
- Irmingard|Irmgard - Giselbert, Count in Maasgau
- Reginar I, Duke of Lorraine, Count in Hainault - Alberade
- Reginar II, Count in Hainault - Aelis de Bourgogne
- Reginar III, Count in Hainault - Adela de Louvain
- Lambert I, Comte de Louvain 976-1015 - Gerberga of Lower-Lorraine
- Lambert II, Comte de Louvain - Oda of Lower-Lorraine
- Adela de Louvain - Otto, Graf von Weimar, Markgraf von Meissen
- Kunigunde, Heiress of Beichlingen - Jaropolk Pjotr Isjaslawitsch, Prince of Wladimir & Turow
- (Mechtild) von Wladimir, Heiress of Beichlingen - Günther I, Graf von Schwarzburg
- Sizzo, Graf von Schwarzburg, Graf von Käfernburg - unknown woman
- Mechtilde von Schwarzburg-Käfernburg - Adolf II, Graf von Holstein 1130-1164
CHARLEMAGNE is considered the "Father of Europe" (Pater Europae).
My ever reliable source is here.
Thanks to Leo.
Bayeee!!!