Iron Crown of Lombardy
Pepin was the second son of Charlemagne by his then-wife Hildegard. He was born Carloman, but was rechristened with the royal name Pepin (also the name of his older half-brother Pepin the Hunchback, and his grandfather Pepin the Short) when he was a young child. He was made "king of Italy" after his father's conquest of the Lombards, in 781, and crowned by Pope Hadrian I with the Iron Crown of Lombardy.