Complex sentence: George married Edith Stuyvesant Dresser in 1898 in Paris, France; their only child, Cornelia Stuyvesant Vanderbilt, was born at Biltmore in the Louis XV room in 1900, and grew up at the estate.
Split into simpler sentences: George married Edith Stuyvesant Dresser in 1898 in Paris, France. Their only child, Cornelia Stuyvesant Vanderbilt, was born at Biltmore in the Louis XV room and grew up at the Estate.