Frank MacKey
Frank Joseph MacKey was an Irish-American polo player in the 1900 Summer Olympics. He was part of the Foxhunters Hurlingham polo team which won the gold medal. He also was a businessman, founding Household Finance Corp in 1878.
After a long illness, he shot himself at 74 while terminally ill and left to his much younger widow, Olga Leighton, his enormous fortune. Soon after his death, Olga married a Spanish aristocrat, Antonio Cabeza de Vaca, 10th Marquess of Portago, and became mother of two, the sportsman Alfonso [de Portago] and the socialite Sol de Moratalla.