Complex sentence: In 1883 at Nymphenburg, Bavaria, she married Prince Thomas, Duke of Genoa, a brother-in-law through his sister Margherita of Savoy of Umberto I of Italy and thus was an uncle of the future Victor Emmanuel III of Italy.
Split into simpler sentences: In 1883 at Nymphenburg, Bavaria, she married Prince Thomas, Duke of Genoa. He was also a brother-in-law through his sister Margherita of Savoy of Umberto I of Italy, and thus was an uncle of the future Victor Emmanuel III of Italy.