The when the when the?

How would you describe the norman conquest in 1066 ce? 1) the british usurping power over the normans 2) the germanic tribes conquering the normans 3) the nordic tribes coming down and taking over what is now known as england. 4)the war between the jutes and the anglo-saxons.

I'm scared to talk to people what can i do to with this?

The prefix of the italicized word in the sentence is rather difficult