Firing squad

Struck by an anarchist with a needle file

Murdered in a tower on command of his uncle

Beheaded by her own cousin

Beheaded by his own parliament

Committed double murder-suicide with his lover

Assassinated with his wife at Sarajevo

Shot in a basement by Soviet revolutionaries

Drowned mysteriously, along with his doctor

Sledding accident while visiting his daughter, Queen of Sweden

Pneumonia after falling into a pond

Rock climbing accident

When her husband's car plunged off a cliff (after having predicted it herself!)

Throat cancer after only 98 days on the throne

Car accident after being chased by paparazzi

Diphtheria contracted from her 10-year-old son

Plane crash with his family on their way to his brother's wedding

Killed by an IRA bomb in a boat with his grandson

Strangled and trampled to death by assassins in his own bedroom

Killed by an anarchist's bomb after exiting his bullet-proof carriage

From an attack of bronchitis (or meningitis) in Nice

Inflammation of the kidney (nephritis)

Shot in a forest by Soviet revolutionaries, 34 days before his older brother

Stabbed by bayonets (repeatedly because of diamonds embedded in undergarments)

Mysteriously, while enjoying a late-night walk in Hamburg (body not immediately identified)

Mysteriously, while flying home from visiting Hitler

Assassinated by anarchists upon leaving a gymnasium

Fell over a high garden wall during an asthma attack

Coughing blood and large-scale hemorrhaging

Tuberculosis while a British POW in Kenya

Crushed in a Winnebago camper while returning from a photo shoot

Died naturally after surviving 55 assassination attempts

Suicide by gunshot while walking his dog (and after having abdicated and broken up with his lover)

Murdered in the palace (with his wife) during an army revolt

Died after 26 days on the throne, during which time he was totally unconscious

Assassinated with his chauffeur while driving through Marseilles

Severe nosebleed

After falling from a horse, chasing a pretty damsel

Cranial bleeding and seizures after a falling from his horse during a boar hunt

Pneumonia or pleurisy from drinking cooled wine after an exhausting game of tennis

Starved to death waiting for the arrival of his son

Died mysteriously in prison, some time after his parents

Struck his head on a door after a game of tennis

From a blow to the head at a jousting tournament at his daughter's wedding

Beheaded by her husband on charges of incest

Stabbed by a crazed Dominican friar delivering a letter

Stabbed during a traffic jam; head missing

Smallpox, right before the death of his son's family from measles

Measles, along with his wife and oldest son, right after his father's death from smallpox

Beheaded in the Place de la Révolution

Killed in battle by his own men, led by Macbeth

Of an 'unclean ailment,' possibly leprosy

Dysentery and tertian ague

Head hacked off (after 5-8 blows with an axe)

Suicide by gunshot (depression over his father's abdication and subsequent life as a commoner)

In battle in the first days of the Second World War

After eating too much lobster and fourteen servings of dessert

Murdered on his way to church by his brother's henchmen

Died in battle, fighting while blind, at Crécy

Blinded with a red-hot poker and buried alive

Assassinated while riding through a forest; severed head taken to Constantinople as a trophy

In prison for the serial murder of dozens of young women

Strangled (alongside his mother) in the Imperial apartment

Shot dead after jumping through a window and breaking his leg

Killed while drunk by a Tatar prince whom he had flogged

Assassinated but made to look like an accident; OR, seizure brought on by playing darts and stabbing himself in the neck; OR, fled and not assassinated at all

Bound, with veins slit open, and bled to death in a warm bath

Arrested by his wife's guards and assassinated in private

Beheaded in battle by Mongols; naked body identified by his six toes on left foot

Murdered in a shooting spree by his own son

Died of self-inflicted gunshot wounds after shooting nine members of his family

Died with most of his noblemen and army at the Battle of Flodden Field

Beheaded; only nine days on the throne

Stabbed in the back and strangled by a bowstring

Shot by conspirators during a masked ball