Their story
Boniface was the chief steward of a rich Roman lady, and Butler says the two lived in sin. He was given to wine and debauchery, but was known for hospitality, generosity and compassion.
Sent to the East, he went to Tarsus, where he openly encouraged the martyrs being tortured before the governor Simplicius and declared himself a Christian. He was tortured with sharpened reeds and boiling lead, and at last beheaded after praying for his persecutors. Butler gives about 307; Baring-Gould, the text on this page, gives 290. The sources differ.