Complex sentence: Charles Frederick Albert was never married but he had a mistress, Dorothea Regina Wuthe, who was raised to the nobility on 14 January 1744 and given the title of "Lady of Carlowitz".
Split into simpler sentences: Charles Frederick Albert was never married but he had a mistress, "Dorothea Regina Wuthe". She was knighted on 14 January 1744, under the name of "Lady of Carlowitz".