Christina Elena McClellan (b. March 17, 1972) is the granddaughter of Nicholas McClellan, Supreme Leader Timothy Max Roosevelt and Empress Elizabeth Mary Alexandria, and the great-granddaughter of former Prime Minister Theodore McClellan. The daughter of Christian Delano McClellan and Katherina Roosevelt.

She married Jonathan Davgon Bismarck XII in 1987 while still in college and had two surviving children, Sabryna Elena Bismarck, and Jonathan Davgon Bismarck XIII.