sentence: Mike Ashley, The Mammoth Book of British Kings and Queens (New york: Carroll & Graf, 1999), p. 260 In 799 Coenwulf made a peace treaty with Wessex.
modified: fix grammar: Mike Ashley, The Mammoth Book of British Kings and Queens (New york: Carroll & Graf, 1999), p. 260 In 799 Coenwulf made an peace treaty with Wessex.