Complex sentence: Julio Dormal (1846-1924) was a Belgian architect who, after studying in Paris, arrived in Argentina in 1868 where he became one of first exponents of the Beaux-Arts style of architecture.
Split into simpler sentences: Julio Dormal (1846-1924) was a Belgian architect. After studying in Paris, he arrived in Argentina in 1868 where he became one of first exponents of the Beaux-Arts style of architecture.