Saint Justin Martyr was an early Christian apologist, who is regarded as the foremost interpreter of the theory of the Logos in the 2nd century. He was martyred, alongside some of his students, and is considered a saint by the Roman Catholic, the Anglican, the Eastern Orthodox, and the Oriental Orthodox Churches.

Saint Liberates, ​Martyr was Abbot​ of the monastery of Gafsa, Tunisia,​ who with six other monks were​ taken prisoner by the Vandal king, Hunneric.​ Efforts were made, in vain, to have them renounce the faith. They were then ordered to be burned alive​ but when it proved impossible to set the wood of their funeral pyre afire, they were clubbed to death.

Saint Venerandus of ​Troyes (modern France)​,​ Martyr ​under the emperor of Aurelian​

Saint Valentine of Rome, was a Christian priest and Martyr who died on the Via Flaminia in the time of the emperor Claudius. After having cured and instructed many persons he was beaten with clubs and beheaded. He is 
commemorated on February 14 and since the High Middle Ages is associated with a tradition of courtly love.