Final answer:
The strongest Germanic kingdom in the early Middle Ages was that of the Franks.
Step-by-step explanation:
In the early Middle Ages, the strongest Germanic kingdom was that of the Franks. The Franks, under the leadership of Charlemagne, established a vast empire that stretched across much of Western Europe. They were known for their military strength and administrative capabilities, as well as their conversion to Christianity.
Learn more about Early Middle Ages Germanic kingdoms