List of Famous people with last name I

Saint Aristaces also known as Aristakes was assigned by St. Gregory I the Enlightener as the next Armenian Catholicos in line of Armenia's Holy Apostolic Church, to stabilize and continue strengthening Christianity not only in Armenia, but also in the Caucasus Albania and Anatolia. He was the second son of St. Gregory I the Enlightener to his wife Miriam and his older brother was Vrtanes. At the time, the position was hereditary and assigned to the Parthian dynasty.

Al-Adil Sayf ad-Din Tuman bay was the twenty fifth Mamluk Sultan of Egypt from the Burji dynasty. He ruled for about one hundred days in 1501.

Amda Seyon I was Emperor of Ethiopia, and a member of the Solomonic dynasty. According to the British expert on Ethiopia, Edward Ullendorff, "Amde Tseyon was one of the most outstanding Ethiopian kings of any age and a singular figure dominating the Horn of Africa in the fourteenth century." His conquests of Muslim borderlands greatly expanded Ethiopian territory and power in the region, maintained for centuries after his death. Amda Seyon asserted the strength of the newly (1270) installed Solomonic dynasty and therefore legitimized it. These expansions further provided for the spread of Christianity to frontier areas, sparking a long era of proselytization, Christianization, and integration of previously peripheral areas.

Julius Meinl I was an Austrian businessman and the founder of Julius Meinl AG, commonly known as Julius Meinl.

Hiempsal I, son of Micipsa and grandson of Masinissa, was a king of Numidia in the late 2nd century BC.

Areus I was Agiad King of Sparta from 309 to 265 BC, who died in battle near Corinth during the Chremonidean War. He was the grandson of Cleomenes II and was succeeded by his son Acrotatus II.

Moshoeshoe was born at Menkhoaneng in the northern part of present-day Lesotho. He was the first son of Mokhachane, a minor chief of the Bamokoteli lineage- a branch of the Koena (crocodile) clan. In his youth, he helped his father gain power over some other smaller clans. At the age of 34 Moshoeshoe formed his own clan and became a chief. He and his followers settled at the Butha-Buthe Mountain. He subsequently became the first King of Lesotho from to 1822–1870.

Talorcan mac Enfret was a King of the Picts from 653 to 657. He was the son of Eanfrith of Bernicia, who had fled into exile among the Picts after his father, Æthelfrith of Northumbria, was killed around the year 616. Eanfrith married a Pictish princess, and their son was Talorcan.

Burchard of Würzburg was an Anglo-Saxon missionary who became the first Bishop of Würzburg (741–754).

Pope Marinus I was the bishop of Rome and ruler of the Papal States from 882 until his death. Controversially at the time, he was already a bishop when he became pope, and had served as papal legate to Constantinople.