More info about the name "Alessa"
Alessa is a variant of Alexa, derived from Alexandra. Alexandra originates in Greek language and means "protector of humanity". It is a feminine form of Alexander. Saint Alexandra was a martyr of the Diocletianic persecutions. Throughout history, there have been many members of royalty given the name Alexandra. In Greek mythology, Alexandra was a by-name of the goddess Hera. It was popularized by Alexander the Great.