Irina Likso's birth name is Irina Anatolievna Likso.
Irina Likso was born on April 14, 1920, in Vitebsk, Soviet Socialist Republic of Byelorussia [now Belarus].
Irina Spasky does die in 39 Clues #6, In Too Deep.
Irina Mazing died in 1994.
Irina Bugrimova died in 2001.
Irina Sebrova died in 1948.
Irina Press died in 2004.
Irina Godunova died in 1603.
Irina Poplavskaya died on May 28, 2012.
Irina Volodko died on January 6, 1989.
Irina Svetlitsa died on December 6, 2001.
Irina Gosheva died on March 11, 1988.