-
After 1721, sons of the
Russian Tsar were
titled Grand Duke. Barkovets,
Tenikhina, p.97 Hall, p.165 Maylunas, Mironenko, p.108 Maylunas, Mironenko, p.172...
- His
Family (Leningrad 1990) p. 59
Nicholas II by O.
Barkovets and V.
Tenikhina (St.
Petersburg 2004) "Alexander Palace". "The
Alexander Palace". eng...
- (2011), p. 137
Welch 2018, p. 246.
Rappaport 2018, p. 269.
Barkovets &
Tenikhina (2006), p. 142 "Kejserinde Dagmar". gravsted.dk (in Danish). Retrieved...