Yes, indeed. Consider also the fact that the Anglo-Saxons were culturally and ethnically similar to the Vikings (whom the Anglo-Saxons collectively referred to

Yes, indeed. Consider also the fact that the Anglo-Saxons were culturally and ethnically similar to the Vikings (whom the Anglo-Saxons collectively referred to as "Danes" despite also coming from Norway and Sweden). The Danelaw[1] had resulted in significant intermixing of Anglo-Saxons and Danes, and by 1066 England had had two Danish kings. It's completely unsurprising that Anglo-Saxons integrated well into the Varangian Guard. [1]: https://en.m.wikipedia.org/wiki/Danelaw https://en.m.wikipedia.org/wiki/Danelaw