Pepin of Heristal: Architect of Frankish Unity

Following his victory at the Battle of Tertry (687), Pepin of Heristal consolidates his rule over the Frankish realms, uniting Austrasia, Neustria, and Burgundy under his sole mayorship. Though a Merovingian infant king nominally reigns over all the Franks, Pepin wields actual power, effectively governing as the de facto ruler of the entire Frankish kingdom.

By centralizing authority, Pepin ensures the continued dominance of the Arnulfing lineage, establishing a lasting political structure that strengthens the position of the mayors of the palace. His rule not only stabilizes the Frankish realm but also lays the groundwork for the eventual transition from Merovingian figureheads to the full ascendance of the Carolingians, shaping the political landscape of medieval Europe.