- Born on October 4, 1899 in Oranienbaum
- Deceased on July 6, 1963 in Sigmaringen, at the age of 63 years
Parents
- Georg Alexander von Mecklenburg-Strelitz (1859 - 1909)
- Natalia Vanliarskaya (1858 - 1921), Gräfin von Carlow
Family
- Married on October 7, 1920 in Geneva, with Irina Raevskaïa (1892 - 1955), issuing
- Georg Alexander (1921 - 1996)
Helene (1924 - 1962)- Karl Gregor (1933 - 2018)
- Married on July 25, 1956, with Charlotte von Habsburg-Lothringen (1921 - 1989)