swap_horiz King Norodom Sihanouk Alternatives

1

King Robert I the Bruce

Robert I, commonly called Robert the Bruce, was King of Scots from 1306 until his death in 1329 and a central leader in...

Scottish Independence 14TH Century Bruce

8.6 Great

2

Sultan Qaboos bin Said

Qaboos bin Said ruled Oman as sultan from 1970 until his death in 2020 after removing his father, Said bin Taimur, in a...

20TH Century Modernizer Omani Al Said

8.1 Great

3

King George VI

George VI (1895-1952) was King of the United Kingdom and the dominions of the British Commonwealth from December 1936 un...

20TH Century Wartime British Commonwealth

7.8 Good

4

Emperor Akihito (Heisei)

Akihito was emperor of Japan from 1989 until his abdication in 2019, and his reign is identified with the Heisei era. He...

Japanese Pacifist 20TH Century Yamato

7.6 Good

5

Queen Margrethe II of Denmark

Margrethe II was queen of Denmark from January 1972 until her abdication in January 2024, when her elder son succeeded h...

Danish Artist 20TH Century Glucksburg

7.6 Good

6

King George V

George V was king of the United Kingdom and the British dominions, and emperor of India, from 1910 until his death in 19...

20TH Century British Wwi Commonwealth

7.5 Good

7

King Abdulaziz Ibn Saud

Abdulaziz ibn Saud was the founder and first king of Saudi Arabia. Beginning with the recapture of Riyadh in 1902, he br...

20TH Century Founder Saudi Al Saud

7.4 Good

8

King Carol I of Romania

Carol I was the ruler of Romania from 1866 to 1914, first as prince and, from 1881, as the country's first king. A membe...

19TH Century Founder Independence Romanian

7.3 Good

9

Emperor Haile Selassie I

Haile Selassie I was emperor of Ethiopia from 1930 to 1974, apart from the period of Italian occupation that followed th...

20TH Century Ethiopian Solomonic Last Emperor

7.2 Good

10

King Hussein I of Jordan

Hussein bin Talal (1935-1999) was the Hashemite king of Jordan from 1952 until his death, although a regency governed un...

20TH Century Jordanian Hashemite Long Reign

7.2 Good

11

King Bhumibol Adulyadej (Rama IX)

Bhumibol Adulyadej (1927-2016), known by the regnal title Rama IX, was king of Thailand from 1946 until his death. A mem...

Longest Reign 20TH Century Thai Chakri

7.2 Good

12

King Faisal of Saudi Arabia

Faisal bin Abdulaziz Al Saud (1906-1975) was king of Saudi Arabia from 1964 until his assassination in 1975. His governm...

20TH Century Saudi Modernizer Al Saud

7.1 Good

13

King Llywelyn ap Gruffudd

Llywelyn ap Gruffudd was prince of Gwynedd and the leading native Welsh ruler of the 13th century. The Treaty of Montgom...

Welsh Independence 13TH Century Gwynedd

7.0 Good

14

Emperor Pedro I of Brazil

Pedro I (1798-1834) was the first emperor of Brazil and a member of the House of Braganza. As Portuguese rule in Brazil...

19TH Century Brazilian Founder Independence

7.0 Good

15

King Michael I of Romania

Michael I was King of Romania during two separate reigns, from 1927 to 1930 and from 1940 until 1947. On 23 August 1944,...

Wwii 20TH Century Romanian Hohenzollern

6.9 Fair

16

King Faisal I of Iraq

Faisal I of Iraq was a Hashemite statesman who became Iraq's first king in 1921 after the Ottoman Empire's rule in the r...

20TH Century Founder Iraqi Hashemite

6.5 Fair

17

King Norodom Sihamoni

Norodom Sihamoni has been King of Cambodia since October 2004, when he succeeded his father, Norodom Sihanouk, after the...

21ST Century Asian Current Cambodian

6.4 Fair

18

Emperor Taisho

Emperor Taisho was the posthumous name of Yoshihito, the 123rd emperor of Japan, who reigned from 1912 until his death i...

Japanese 20TH Century Democracy Yamato

6.0 Fair

19

King Goodwill Zwelithini

King Goodwill Zwelithini was the eighth king of the Zulu nation and served as its traditional monarch from 1971 until hi...

Cultural 20TH Century Zulu Ceremonial

5.9 Mediocre

20

King Idris I of Libya

Idris I was the first and only king of Libya, ruling from the country's independence in 1951 until a military coup remov...

20TH Century Libyan First King Deposed

5.8 Mediocre