List of Famous people with last name I

Otto I, Count of Scheyern was the earliest known ancestor of the House of Wittelsbach, whose relation with the House can be properly verified.

Moctezuma I, also known as Moteuczomatzin Ilhuicamina, Huehuemoteuczoma or Montezuma I, was the second Aztec emperor and fifth king of Tenochtitlan. During his reign, the Aztec Empire was consolidated, major expansion was undertaken, and Tenochtitlan started becoming the dominant partner of the Aztec Triple Alliance. Often mistaken for his popular descendant, Moctezuma II, Moctezuma I greatly contributed to the famed Aztec Empire that thrived until Spanish arrival, and he ruled over a period of peace from 1440 to 1453. Moctezuma brought social, economical, and political reform to strengthen Aztec rule, and Tenochititlan benefited from relations with other cities.

Louis I was suo jure Count of Nevers and jure uxoris Count of Rethel.

Yeshaq I or Isaac was Emperor of Ethiopia (1414–29). A member of the House of Solomon, he was the second son of Emperor Dawit I.

Miro, Count of Barcelona was count of Barcelona, Gerona and Osona from 947 to 966. He was son of Sunyer, Count of Barcelona and his second wife, Riquilda.

Dawit I was Emperor of Ethiopia, and a member of the Solomonic dynasty. He was the younger son of Newaya Krestos.

Vrtanes also known Saint Vrtanes was Armenian Catholicos in the Armenia's Holy Apostolic Church. Vrtanes succeeded immediately after St. Gregory I the Enlightener and Aristaces as third in line in the then-hereditary Parthian line of Catholicoi. Vrtanes was the first son born to St. Gregory I the Enlightener by his wife Miriam and his younger brother was Aristaces. He was the father of St. Husik I and Gregory by an unnamed wife. He reigned from 333 to 341.

Cleombrotus I was a Spartan king of the Agiad line, reigning from 380 BC until 371 BC. Little is known of Cleombrotus' early life. Son of Pausanias, he became king of Sparta after the death of his brother Agesipolis I in 380 BC, and led the allied Spartan-Peloponnesian army against the Thebans under Epaminondas in the Battle of Leuctra. His death and the utter defeat of his army led to the end of Spartan dominance in ancient Greece. Cleombrotus was succeeded by his son Agesipolis II. His other son was Cleomenes II.

Farrukhzad I was the 24th ruler of Shirvanshahs. He was fourth son of Shirvanshah Manuchehr III, younger brother of previous shahs - Shirvanshah Afridun II, Akhsitan I, Shirvanshah Shahanshah, uncle of Shirvanshah Fariburz II and father of Shirvanshah Gushtasb I and Prince Rashid ibn Farrukhzad.