What three languages combined to form old English?

Old English is a direct descendant of Anglo-Saxon, which itself was a combination of three Germanic languages:

1. Old English (or Anglo-Saxon) itself, spoken by the Angles, Saxons, and Jutes who migrated to Britain from what is now Denmark, northern Germany, and the Netherlands.

2. Old Norse, brought to Britain by Viking raiders and settlers, starting in the 8th century.

3. Latin, the language of the Roman Empire, which had a significant influence on Britain during the Roman period (43-410 AD).

While Old Norse and Latin contributed significantly to the vocabulary and structure of Old English, Old English itself is considered the foundation of the language.