Who Has Killed The Most People In History?

It's a grim question but who killed the most people in History? The candidates range from despotic leaders to imperial rulers, all of whom killed millions of people during their bloody reigns and usually Adolf Hitler is amongst the candidates but in the awful league of mass killers of fellow humans gathered from Wikipedia, The Orwell Foundation and National Science Foundation, people who have deaths attributed to them through the conditions within the country due to national or international policy or by active killings by force, Hitler is not in the top 3 which is headed by Mao Zedong (80,170,000 deaths), Genghis Khan (60,000,000) and Joseph Stalin (42,673,000) and then Hitler is fourth with 25,495,692 deaths under his rule.
 
Another Mongol, Timur Khan, round off the top 5 with 20,000,000 deaths but they are not the only leaders who saw millions die during their reign, down to Vietnamese leader Ho Chi Minh at number 20, the death toll is in the millions and includes someone the British seems to hold up as a hero in Winston Churchill at number 10 (7,000,000 deaths), Saddam Hussein (2,000,000) who is just ahead of 17th placed George W Bush who's policies in Iraq and Afghanistan led directly to 1,200,000 deaths.  

The rest of the league table includes names you would expect such as Benito Mussolini (628,000 deaths), Idi Amin (500,000), Ivan the Terrible (260,000), Vlad the Impaler (100,000) and General Pinochet (40,018) and the leader who is currently at 45 in the list of people responsible for most human deaths, Benjamin Netanyahu, whose policies have seen 21,928 killed under his rule, a number which is currently increasing daily.

The top 54 people in History who have been responsible for the most human deaths either through national or international policy are therefore as follows:

1    Mao Zedong - 80,170,000     China        1893-1976
2    Genghis Khan - 60,000,000    Mongolia    1162-1227    
3    Joseph Stalin - 42,673,000     Soviet Union    1879-1953
4    Adolf Hitler - 25,495,692     Germany     1889-1945
5    Timur Khan - 20,000,000    Mongolia     1336-1405
6    Chiang Kai-Shek - 18,522,000     China        1887-1975
7    Hideki Tojo - 14,000,000    Japan        1884-1948
8    Hirohito - 14,000,000     Japan        1901-1989
9    Leopold II of Belgium - 13,000,000      Belgium        1835-1909  
10  Winston Churchill - 7,000,000    UK        1874-1965

11    Suharto - 3,418,000        Indonesia    1921-2008
12    Pol Pot - 3,400,000     Cambodia    1925-1998
13    Omar al-Bashir - 2,530,000       Sudan        1944-
14    Ranavalona I - 2,500,000    Madagascar     1788-1861
15    Mengistu Haile Mariam - 2,000,000     Ethiopia    1937-
16    Saddam Hussein - 2,000,000     Iraq        1937-2006
17    George W Bush - 1,200,000    USA        1946-
18    Théoneste Bagosora - 1,100,000     Rwanda        1941-2001
19    Nikola Mandic - 1,088,000     Croatia     1989-1945
20    Ho Chi Minh  - 1,082,000     Vietnam        1890-1969

21    Josip Broz Tito - 802,000      Yugoslavia     1892-1980
22    Benito Mussolini - 628,000     Italy        1883-1945
23    Heng Samrin - 383,000     Cambodia    1934-
24    Michel Micombero - 300,000      Burundi        1940-1983
25    Ivan the Terrible  - 260,000      Russia        1530-1584
26    King Salman - 230,000       Yemen        1935-
27    Francisco Franco - 227,321        Spain        1892-1975
28    Syngman Rhee - 200,000      South KOrea    1875-1965
29    Siad Barre - 200,000      Somalia        1910-1995
30    General Ran Min - 200,000     China        310-352

31    Bashar al-Assad - 199,901       Syria        1965-
32    Tomás de Torquemada - 124,621      Spain        1420-1498
33    Vlad the Impaler - 100,000      Romania        1431-1477
34    Jean-Bédel Bokassa - 90,000          Central African Republic    1921-1996
35    Francisco Macías Nguema - 80,000         Equatorial Guinea    1924-1979
36    Ferdinand Marcos - 80,000       Philippines    1917-1989
37    Henry VIII - 72,000        England        1491-1547    
38    François Duvalier - 60,000        Hiati        1907-1971
39    Rafael Trujillo - 50,000        Dominican republic    1891-1961
40    Ahmed Sékou Touré - 50,000      Guinea        1922-1984    

41    Maximiliano Hernández Martínez - 40,000     El Salvador    1882-1966    
42    General Pinochet - 40,018        Chile        1915-2006    
43    Hissène Habré - 40,000      Chad        1942-2021
44    Enver Hoxha - 25,000      Albania        1908-1985
45    Benjamin Netanhyahu - 21,928   Israel  1949-
46    Fulgencio Batista - 20,000        Cuba        1901-1973
47    Fidel Castro - 10,723         Cuba        1926-2016
48    Vladimir Lenin - 10,442,168    Soviet Union    1870-1924
49    Grégoire Kayibanda - 10,000         Rwanda        1924-1976
50    Tiberius - 9,500         Ancient Rome    42bc-37ad

51    Caligula - 9,000         Ancient Rome    12ad-41ad
52    Johnny Paul Koroma - 6,000         Sierra Leone    1960-2003
53    Nero - 5,750        Ancient Rome    37ad-68ad
54    Claudius - 2,935          Ancient Rome    10bc-54ad