Complex sentence: The Russian Orthodox-baptised Württembergian Queen consort Olga Nikolaevna of Russia arranged, that Ustinov was naturalised in the Kingdom of Württemberg, thus becoming German, and that his title was confirmed as a Württembergian rank, thus becoming Freiherr von Ustinow.
Split into simpler sentences: The Russian Orthodox-baptised Württembergian Queen consort, Olga Nikolaevna of Russia, arranged for Ustinov to be naturalised in the Kingdom of Württemberg and become a German citizen. His title was confirmed as a Württembergian rank, and he became Freiherr von Ustinow.