Max Frei, is the pen name of Svetlana Yuryevna Martynchik, a Russian fantasy writer, she writes in Russian and currently lives as a permanent resident in which capital of Lithuania and its largest city, with a population of 542,664 as of 2015?
Svetlana Martynchik:  She writes in Russian and currently lives as a permanent resident in Vilnius, Lithuania. Vilnius: Vilnius (] , see also other names) is the capital of Lithuania and its largest city, with a population of 542,664 as of 2015 .
Vilnius