Final answer:
The Anglo-Saxons were a Germanic people who ruled England until the Norman Conquest in 1066.
Step-by-step explanation:
The members of the Germanic peoples who conquered England and formed the ruling class until the Norman conquest are known as the Anglo-Saxons. This term refers to the Angles and the Saxons, two distinct groups originating from present-day southern Denmark and northern Germany. They settled in southern Britain during the late fifth century, creating a new society and culture that blended with the existing Roman populations through a process known as acculturation. These Anglo-Saxons held power in England until 1066, when William the Conqueror, a Viking-descended king, defeated the Anglo-Saxon king during the Norman Conquest.