What did Lou costello die of?

Answer 1

After making one solo film, The 30 Foot Bride of Candy Rock, Costello died of a heart attack at Doctors' Hospital in Beverly Hills on March 3, 1959, three days before his 53rd birthday. A funeral Mass was said at his parish, St. Francis de Sales Catholic Church in Sherman Oaks.[8] He is interred at the Calvary Cemetery in East Los Angeles, California. His last words as reported in the March 4, 1959 Los Angeles Times and Los Angeles Evening Mirror News were "I think I'll be more comfortable," according to a private nurse who was the only person in the room with him at the time.[9][10] The widely reported claim that he died in the presence of friends and that his last words were actually "that was the best ice-cream soda I ever tasted" appears to have been fabricated some time after the event, possibly as a dig against Costello's weight.[11] Anne, his wife of 25 years, was at his side most of the day, but was sent home by her assuring husband only an hour before his death at 3:55pm.[citation needed]

That same year on December 5, Lou's wife Anne died at age 47.