Occurrence of the surname: (von) Rengarten, von Markvot-Conde-Rengarten, Markwot-Conde von Rengarten:
- Russia / Baltiic, ca. 1800 – 1920, Mogilev, Vitebsk
- Schwiss about 1920/30 to unknown date
Ahnenforschung "von Hoyer-Boot"
HANNOVER/RUSSLAND/WEISSRUSSLAND/USA
- Russia / Baltiic, ca. 1800 – 1920, Mogilev, Vitebsk
- Schwiss about 1920/30 to unknown date