List of Famous people with last name I

Theuderic I was the Merovingian king of Metz, Rheims, or Austrasia—as it is variously called—from 511 to 533 or 534.

James I of Bourbon, was a French prince du sang, and the son of Louis I, Duke of Bourbon and Mary of Avesnes. He was Count of Ponthieu from 1351 to 1360, and Count of La Marche from 1341 to his death.

Jesse Root Grant was a farmer, tanner and successful leather merchant who owned tanneries and leather goods shops in several different states throughout his adult life. He is best known as the father of Ulysses S. Grant and the one who introduced Ulysses to military life at West Point. Jesse was born in Greensburg, Pennsylvania, and was one of seven children. He was a self-made man who rose from poverty to become a somewhat wealthy merchant.

Rudolf I of Bavaria, called "the Stammerer", a member of the Wittelsbach dynasty, was Duke of Upper Bavaria and Count Palatine of the Rhine from 1294 until 1317.

Louis I of Hesse, called "the Peaceful", was Landgrave of Lower Hesse (Hesse) from 1413-1458.

Christian I was the Duke of Birkenfeld-Bischweiler from 1600 until 1654.

Zewditu was Empress of Ethiopia from 1916 to 1930. The first female head of an internationally recognized country in Africa in the 19th and 20th centuries, and the first empress regnant of the Ethiopian Empire, her reign was noted for the reforms of her Regent and designated heir Ras Tafari Makonnen, about which she was at best ambivalent and often stridently opposed, due to her staunch conservatism and strong religious devotion. As of 2020 she is the most recent empress regnant in history.

Franz Joseph I, Prince of Liechtenstein, born Franz de Paula Josef Johann Nepomuk Andreas, was the Prince of Liechtenstein from 1772 until his death.

Pinedjem I was the High Priest of Amun at Thebes in Ancient Egypt from 1070 to 1032 BC and the de facto ruler of the south of the country from 1054 BC. He was the son of the High Priest Piankh. However, many Egyptologists today believe that the succession in the Amun priesthood actually ran from Piankh to Herihor to Pinedjem I.

Hattusili I was a king of the Hittite Old Kingdom. He reigned ca. 1650-1620 BCE as per middle chronology, the most accepted chronology nowadays, or alternatively ca. 1586–1556 BCE. Recent excavations in Zincirli Höyük, Southern Turkey, suggest that Hattusili I destroyed a complex at that site in the mid to late 17th century BCE, which can confirm the middle chronology dating for his reign. This event could have been part of his campaign against Zalpa in order to disrupt an exchange network connected to Aleppo that previously linked the Euphrates, North Syria, and Central Anatolia.