Who married Gloria Morgan Vanderbilt?

Gloria Morgan Vanderbilt (born Maria Mercedes Morgan; 23 August 1904 – 13 February 1965) was an American socialite. Vanderbilt was the mother of fashion designer and artist Gloria Vanderbilt and maternal grandmother of television journalist Anderson Cooper. She was a central figure in Vanderbilt vs. Whitney, one of the most sensational American custody trials in the 20th century.

Reginald Claypoole Vanderbilt (January 14, 1880 – September 4, 1925) was a member of the Vanderbilt family. He was the father of Gloria Vanderbilt and maternal grandfather of Anderson Cooper. An avid equestrian, Vanderbilt was the founder and president of many equestrian organizations. He gambled away most of his inheritance.