She is the older sister of Russian actress
Svetlana Antonova. There are 5 years and 9 months between them. Both were born in Moscow. And both are 5'10-1/2" (179 cm) tall. Nataliya is also, of course, the aunt of Svetlana's three children: daughter Mariya, from Svetlana's previous marriage to Russian actor
Oleg Dolin, and daughter Taisiya and son Arseniy, from her current marriage to Russian director, writer, producer, and actor
Aleksandr Zhigalkin. Both Nataliya and Svetlana are also first cousins of Russian actor
Oleg Mosalev.