skos:altLabel | - Duke
- Adolf Friedrich
- Adolf Frederick I
- Adolf Friedrich V, Grand Duke of Mecklenburg-Strelitz
- Adolf Friedrich of Mecklenburg
- Adolf Friedrich zu Mecklenburg
- Adolf Friedrich, Duke of Mecklenburg-Schwerin
- Adolf Friedrichs, Herzogs zu Mecklenburg
- Deutschen Zentral-Afrika-Expedition
- Duke Adolf Friedrich
- Duke Adolf Friedrich IV
- Duke Adolf Friedrich of Mecklenburg-Schwerin
- Duke Johann Albrecht of Mecklenburg-Schwerin
- German Central Africa Expedition in 1907–1908
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