Her name is Maddes Aiort, in 1937-1938 she has said that it was the granduchess Tatiana... She came from Canada. Maddess Aiort is not very popular because everyone has realized that she could not be in any way the Grand Duchess Tatiana. In fact she was exposed as early as 1942 (or 1943) and was forced to leave Canada.
Later, she emigrated to Spain, and she died. Maddes Aiort died in 1982 of an unknown illness.