Sergey Isakov (1859-1946) (1859–1946) Parents Nikolay Isakov Anna Lopukhina Children Lyudmila Isakova Yakov Isakov Anna Isakova Sergey Isakov Nikolay Isakov Siblings Pyotr Isakov Yekaterina Isakova Vasily Isakov Mariya Isakova Partners Lyudmila Tarnovskaya