sisters Maria Ivanovna & Vera Ivanovna Beck by Vladimir Ivanovich Hau, 1842
Their mother was Maria Arkadevna Beck, née Stolypina, by her second marriage her last name was Vyazemskaya. The girl’s father was Ivan Alexandrovich Beck (1807-1842), see my post here. Maria Ivanovna Beck later married count Aleksandr Nikolaevich Lamsdorf (1835-1902). Here is a painting of her as a toddler and here is a painting of her in later years.
source: WikiCommons
