Who spoke English in 1300?

Answer 1

In the year 1300 nobody spoke English (that is, modern English). The language spoken in most of England was Middle English, which was not spoken anywhere else. An example of this language is this text (the Lord's Prayer):

Oure fadir that art in heuenes, halewid be thi name; thi kyndoom come to; be thi wille don in erthe as in heuene: gyue to us this dai oure breed ouer othir substaunce; and forgyue to us oure dettis, as we forgyuen to oure gettouris; and lede us not in to temptacioun, but delyuere us fro yuel.

Certain parts of England were still speaking their own ancient and traditional languages instead of Middle English; in Cornwall, everyone spoke Kernowek, while on the Isle of Man everyone spoke Manx Gaelic.

Answer 2

In 1300, English was primarily spoken by the common people in England and had started to replace French as the language of administration and literature. The English spoken during this time was Middle English, which was influenced by Old Norse and Norman French. Members of the nobility and clergy would have likely been bilingual in Latin and French.