List of Famous people with last name I

Charles I, Duke of Mecklenburg[-Güstrow], was the reigning Duke of Mecklenburg in the Mecklenburg-Güstrow part of the country.

Childebrand I was a Frankish duke (dux), illegitimate son of Pepin of Heristal and Alpaida, and brother of Charles Martel. He was born in Autun, where he would later die. He married Emma of Austrasia and was given Burgundy by his father, becoming a duke. He distinguished himself in the expulsion of the Saracens from France alongside his brother.

William I, the one-eyed, was Margrave of Meissen. His surname is related to the legend that Saint Benno appeared to him because of his disputes with the Church in a dream and he had an eye gouged out.

Charles I, Landgrave of Hesse-Philippsthal was a member of the House of Hesse and Landgrave of Hesse-Philippsthal from 1721 until his death.

Theodoric I was the King of the Visigoths from 418 to 451. Theodoric is famous for his part in defeating Attila at the Battle of the Catalaunian Plains in 451, where he was killed.

Theodoric I, a member of the House of Wettin, was Margrave of Lusatia from 1156 until his death.

Windeby I is the name given to the bog body found preserved in a peat bog near Windeby, Northern Germany, in 1952. Until recently, the body was also called the Windeby Girl, since an archeologist believed it to be the body of a 14-year-old girl, because of its slight build. Prof. Heather Gill-Robinson, a Canadian anthropologist and pathologist, used DNA testing to show the body was actually that of a sixteen-year-old boy. The body has been radiocarbon-dated to between 41 BC and 118 AD.

Robert Wood Johnson I was an American industrialist. He was also one of the three brothers who founded Johnson & Johnson.

Frederick I, the Victorious was a Count Palatine of the Rhine and Elector Palatine from the House of Wittelsbach in 1451–76.