Saint Andrew, one of the Twelve Apostles and brother of Saint Peter, is the patron saint of Scotland as well as of Russia and Greece. He is also the patron saint of fishermen.

Saint Andrew is believed to have been crucified on an diagonally transversed cross at Patras in Greece. According to tradition a part of the relics of Saint Andrew were taken to Scotland by Saint Regulus and his bones were laid in a tomb on the coast of Fife, where he founded the settlement of St Andrews.

Saint Andrew's day, November 30th, is Scotland's National Day, for Andrew is Scotland's patron saint and the St Andrew's Cross is Scotland's flag.

Read more: https://www.celticcountries.com/traditions/19-andrew-the-patron-saint-of-scotland