Which President had his mistress by his side when he died?

On the afternoon of April 12, Roosevelt said, "I have a terrific pain in the back of my head." He then slumped forward in his chair, unconscious. The president's attending cardiologist, Dr. Howard Bruenn, diagnosed a massive cerebral hemorrhage (stroke). At 3:35 pm that day, Roosevelt died.

In his later years at the White House, when Roosevelt was increasingly overworked, his daughter Anna Roosevelt Boettiger had moved in to provide her father companionship and support. Anna had also arranged for her father to meet with his former mistress, the now widowed Lucy Mercer Rutherfurd. A close friend of both Roosevelt and Mercer who was present, Elizabeth Shoumatoff, rushed Mercer away to avoid negative publicity and implications of infidelity. When Eleanor heard about her husband's death, she was also faced with the news that Anna had been arranging these meetings with Mercer and that Mercer had been with Franklin when he died.

On the morning of April 13, Roosevelt's body was placed in a flag-draped coffin and loaded onto the presidential train. After a White House funeral on April 14, Roosevelt was transported back to Hyde Park by train, guarded by four servicemen, one each from the Army, Navy, Marines, and Coast Guard. As was his wish, Roosevelt was buried in the Rose Garden of the Springwood estate, the Roosevelt family home in Hyde Park on April 15. Eleanor died in November 1962 and was buried next to him.