Place of Birth: Vienna, Nazi Germany (now Austria)
Date of Birth: 18 January 1944
Ethnicity: Dutch, Estonian
Alexander Van der Bellen is an Austrian politician and economist. His father, Aleksander Konstantin van der Bellen, was a Russian-born aristocrat, of Dutch descent. His mother, Alma (Siibold), was also a Russian immigrant, of Estonian descent. He is married to Doris Schmidauer. He was previously married to Brigitte.
Alexander’s paternal grandparents were Aleksander Konstantin van der Bellen (the son of Aleksander van der Bellen) and Adele Emilie Reymann. Adele was likely Estonian.
Alexander’s maternal grandparents were Julius Friedrich Sibold (the son of Mihkel Sibold and Kadri Siibold) and Adele Kask (the daughter of Mihkel Kask). Julius and Adele were Estonian immigrants, from Meeri, Tartu County, and Tartu, respectively. Mihkel Sibold was the son of Dawid Sibold and Liso Lillo. Kadri was the daughter of Dawid Pehka and Ann Lind.
Source: Genealogy of Alexander Van der Bellen – https://www.geni.com