Dear Sarushka, a quote from an article written by David Chavchavadze:
"...My mother’s mother was Princess Marie of Greece and Denmark, daughter of King George I and Queen Olga of the Hellenes. I called her Amama, the name Danish children used for grandmothers....Amama and her husband Apapa produced two children, Nina (my mother) and Xenia, born in 1901 and 1903..."
"...My other grandmother, born a Russian bearing the untitled but noble name of Rodzyanko, became a princess by marrying Prince Alexander Chavchavadze, and when they were divorced she married another Russian prince, Peter Troubetzkoy. I was instructed to call this grandmother “Babady,” obviously some child’s corruption of “babushka,” which means “grandmother,” not “kerchief” in Russian..."