Regulus

Regulus, or RULE, St, according to legend, a monk of Constantinople or bishop of Patras who in 347 A.D. came to Muckross or Kilrimont (afterwards St Andrews), bringing relics of St Andrew to Scotland from the East. The adoption of St Andrew as the national patron saint appears to belong to the first half of the 8th century; and for the possible identification of St Regulus with an Irish St Riagail of the 6th century, see Skene's Celtic Scotland (vol. ii. 1877).