<P> All Is Fair in Love and War may refer to: </P> <Ul> <Li> "All is fair in love and war", a proverb attributed to John Lyly's Euphues </Li> <Li> All Is Fair in Love and War (album), an album by Blessed by a Broken Heart </Li> <Li> "All Is Fair in Love and War" (song), a song by Ronnie Milsap </Li> </Ul> <Li> "All is fair in love and war", a proverb attributed to John Lyly's Euphues </Li> <Li> All Is Fair in Love and War (album), an album by Blessed by a Broken Heart </Li>

Who first said all is fair in love and war