Quem se casou com Karl Otto Georg von Meck?

Karl Otto Georg von Meck (Russian: Карл Фёдорович фон Мекк, romanized: Karl Fyodorovich fon Mekk; 22 June 1821 – 26 January 1876) was a Russian businessman of Baltic German descent who was one of the founders of Russian railway transport.

Nadezhda Filaretovna von Meck (Russian: Надежда Филаретовна фон Мекк; 10 February [O.S. 29 January] 1831 – 13 January 1894) was a Russian businesswoman who became an influential patron of the arts, especially music. She is best known today for her artistic relationship with Pyotr Ilyich Tchaikovsky, supporting him financially for thirteen years, so that he could devote himself full-time to composition, while stipulating that they were never to meet. Tchaikovsky dedicated his Symphony No. 4 in F minor to her. She also gave financial support to several other musicians, including Nikolai Rubinstein and Claude Debussy.