Why in the 9th century the pagan Normans were easily baptized after their defeats, while in the 8th century

Why in the 9th century the pagan Normans were easily baptized after their defeats, while in the 8th century the pagan Saxons behaved differently?

The Normans of the 9th century, being baptized, became full-fledged vassals of their victors – Christian kings (like Alfred of England or Odo of France). The power of these kings was much weaker than that of Charlemagne in the 8th century.

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