Title: Miles Davis
Content:  In early September 1991, Davis checked into St. John's Hospital near his home in Santa Monica, California, for routine tests. Doctors suggested he have a tracheal tube implanted to relieve his breathing after repeated bouts of bronchial pneumonia. The suggestion provoked an outburst from Davis that led to an intracerebral hemorrhage followed by a coma. According to Jo Gelbard, on September 26, Davis painted his final painting, composed of dark, ghostly figures, dripping blood and "his imminent demise." After several days on life support, his machine was turned off and he died on September 28, 1991, in the arms of Gelbard. He was 65 years old. His death was attributed to the combined effects of a stroke, pneumonia, and respiratory failure. According to Troupe, Davis was taking azidothymidine (AZT), a type of antiretroviral drug used for the treatment of HIV and AIDS, 
Title: Miles Davis
Content:  his treatments in hospital. A funeral service was held on October 5, 1991, at St. Peter's Lutheran Church on Lexington Avenue in New York City that was attended by around 500 friends, family members, and musical acquaintances, with many fans standing in the rain. He was buried in Woodlawn Cemetery in the Bronx, New York City, with one of his trumpets, near the site of Duke Ellington's grave. On his religious views, he was an agnostic. At the time of his death, Davis's estate was valued at more than $1 million. In his will, Davis left 20 percent to his daughter Cheryl Davis; 40 percent to his son Erin Davis; 10 percent to his nephew Vincent Wilburn Jr. and 15 percent each to his brother Vernon Davis and his sister Dorothy Wilburn. He excluded his two sons Gregory and Miles IV.
Title: Mike Davis (wrestler)
Content:  Davis died on December 25, 2001 of a massive heart attack in Granbury, Texas, at the age of 45, which was attributed to drug-related causes. He was the third World Class wrestler to die in six months (following the deaths of Terry Gordy and Chris Adams in July and October respectively).
Title: Virginia Davis
Content:  After a year of failing health, Davis-McGhee died of natural causes in her home in Corona, California on August 15, 2009, aged 90.
Title: Michael Davis (bassist)
Content:  On February 17, 2012, Davis died of liver failure at the age of 68. He was survived by his wife, three stepsons, two daughters, and a son.
Title: Al Davis
Content:  Davis died, aged 82, in his suite at the Hilton Hotel Oakland Airport at 2:45 a.m. PDT on October 8, 2011, in Oakland, California. Nine days later, a private service and funeral was held for Davis, who was interred at Chapel of the Chimes. In the days following the funeral, The Associated Press obtained information pertaining to Davis' death. The death certificate, issued by Alameda County, disclosed Davis had died from "an abnormal heart rhythm, congestive heart failure and a heart muscle disease". Davis had previously undergone heart surgery in 1996. Davis was also afflicted with skin cancer and had undergone throat surgery in the days preceding his death. There was an outpouring of support and grief 
Title: Mike Davison (baseball)
Content:  Davison died on May 11, 2013 at Glencoe Regional Health Services Long Term Care in Glencoe, Minnesota. He was 67 years old.
Title: Mike Davis (defensive back, born 1956)
Content:  Davis died at age 65 on April 25, 2021.
Title: Miles Davis
Content:  inducted into the Order of Malta at a ceremony at the Alhambra Palace in Spain (this was part of the reasoning for his daughter's decision to include the honorific "Sir" on his headstone). Later that month, Davis cut his European tour short after he collapsed and fainted after a two-hour show in Madrid and flew home. There were rumors of his poor health reported by the American magazine Star in its February 21, 1989, edition, which published a claim that Davis had contracted AIDS, prompting his manager Peter Shukat to issue a statement the following day. Shukat said Davis had been in the hospital for a mild case of pneumonia 
Title: Sid Davis
Content:  Davis died in his house on October 16, 2006 in Palm Desert, California at age 90. The cause of death was lung cancer. At the time of his death, he had a companion, Shirley Friesen, and a grandson.

Question: what did miles davis died of?
Answer: Pneumonia.