Complex sentence: Alexandre Henri Negresco (1868-14 May 1920) was a Romanian hotel director and founder of the Hotel Negresco in Nice, France, one of very few palaces built in its time by a someone who was not a noble.
Split into simpler sentences: Alexandre Henri Negresco (1868-14 May 1920) was a Romanian hotel director and founder of the Hotel Negresco in Nice, France. It was one of very few palaces at the time which was built by a someone who was not a noble.