Karl Georg Otto Willibald von Kalckstein
Karl Georg Otto Willibald von Kalckstein (14 December 1812 – 6 June 1894) was a Prussian politician.
Around 1830, Kalckstein joined the Prussian Army and became an Officer of the Royal Guards Regiment in Berlin. About 1842 he returned to his family's manor at Wogau. In 1848 he was elected as deputy member of the Frankfurt Parliament of the election district Heiligenbeil/Pr. Eylau and became a member of the Parliament on 11 October 1848 after the delegate Graf Dohna-Lauck resigned his position.
Kalckstein died in Wogau.
- Horst Schulz, "Pr. Eylau, eine Kreisstadt in Ostpreussen", Verden/Aller 1998, p. 240