Fermin (also Firmin, from Latin Firminus; Spanish Fermín) was a legendary holy man and martyr, traditionally venerated as the co-patron saint of Navarre, Spain. His death may be associated with either the Decian persecution (250) or Diocletianic Persecution (303).

Although he is said to have lived in the third century, Fermin's legend is a creation of the ninth century. It probably originates in the diocese of Toulouse, which endeavoured to spread the devotion to Saint Fermin. If there was a historical Fermin he is wholly unknown and was probably no more than a name on a tombstone around which an edifying legend was crafted. (Full article...)
Attributes: cloth of a bishop, holding his own head, with sword or unicorn
Patronage: Amiens, France; Lesaka, Spain; Navarre, Spain; Pamplona, Spain
See also: Louis Martin and Marie-Azélie Guérin, parents of Thérèse of Lisieux; Euphrosyne of Alexandria