Catholic Encyclopedia: Four Crowned Martyrshttp://www.newadvent.org/cathen/06163a.htm
The Four Crowned Martyrs are actually two groups, with a total of nine or ten martyrs. The first five were masons or sculptors in Pannonia, martyred in 305. The second was a group of four martyrs, names unknown. They have been venerated since the fourth century and share a feast day on 8 November.
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