Deaths by poisoning

8th-century Sunni theologian and jurist

5th Rashidun Caliph (r. 661) and second Shia Imam

Swedish German chemist who discovered oxygen

Muslim scholar and Imam (died 765)

Bavarian physicist and optical lens manufacturer

ex-KGB agent and FSB lieutenant-colonel (1962-2006)

Spanish explorer and conquistador

Safavid Shah of Iran from 1524 to 1576

The 11th Achaemenid Emperor (358–338 BC)

Great-grandson of Muhammad and the fourth of the Shiite Imams

Byzantine Emperor from 1118 to 1144

eighth of the Twelve Shia Imams (766–818)

King of Macedonia from 323/2 to 309 BC

Soviet poet (1933-2010)

The 12th Achaemenid Emperor (338–336 BC)

seventh of the Twelve Imams (745–799 CE)

Fifth of the Twelve Shia Imams

American hiker and explorer (1968–1992)

eleventh of the Twelve Shia Imams

tenth of the Twelve Shia Imams (828–868)

queen of Seleucid Empire (c. 164 - 121 BC)

ninth of the Twelve Imams of Twelver Shi'ism

Emperor of Constantinople

father of King Arthur in Arthurian legend

Jewish High Priest and King of Judea, 66 BC to 63 BC

princess of the House of Aragon and queen pretendent of Navarre

King of Hungary and Croatia (1133-1165)

King of Wessex (r. 786-802)

Idrisid ruler (r. 788–791)

King of León (c.932–966)

first russian Tsarina as the first spouse of Ivan the Terrible

Grand Prince of Vladimir (1191-1246)

emperor of the Han dynasty

Khan of Gokturk

King of Navarre (1467-1483)

Chinese general and warlord (1874–1939)

Chinese martial artist (1868-1910)

Greek statesman, general and Achaean League strategos (271-213 BC)

Tizocic (), or Tizocicatzin (), usually known in English as Tizoc, was the seventh tlatoani of Tenochtitlan. His name means, "He who makes sacrifices" or "He who does penance." Either Tizoc or his successor Ahuitzotl was the first tlatoani of Tenochtitlan to assume the title Huey Tlatoani ("supreme tlatoani") to make their superiority over the other cities in the Triple Alliance (Aztec Empire) clear.

ruler of the Southern Tang Kingdom in ancient China

2nd century king of Iberia (Kartli)

Duke of Brittany

Caliph of Córdoba

Georgian prince

6th century Lombard queen

17th century Melanesian chief

Bagoas (; , ; died 336 BCE) was a prominent Persian official who served as the vizier (Chief Minister) of the Achaemenid Empire until his death.

Byzantine princess and heiress to the throne (1152-1182)

Arab military commander (died 658)

Portuguese Jesuit priest, missionary, and explorer (1580–1634)

Grand Prince of Moscow

Italian noble

U.S. ornithologist (1813–1869)

first American law professor, a noted classics scholar, a Founding Father of the United States and a Virginia judge

Genoese doge (1301-1363)

Prince of Wallachia from 1678 to 1688

Prince of Antioch (1431-1457)

2006 fatal poisoning of a former FSB and KGB officer

South Korean singer (1994–2024)

ancient Greek queen regnant