Denier - Louis IV the Child Toul mint

Louis IV — known as "the Child" — became king of East Francia at age six in 900, the last of the Carolingian line to rule there. His reign coincided with Magyar raids that devastated large swaths of the kingdom; the mint at Toul, sitting within the ecclesiastical territory of the Bishop of Toul, continued striking in his name despite the administrative fragility of a regency government. Real power rested with Archbishop Hatto of Mainz and later with Conrad of Franconia.

Louis died in 911 at seventeen, ending the East Frankish Carolingian line entirely. The kingdom passed to Conrad I — the first non-Carolingian ruler — within months of his death.