Malo was a mid-sixth century founder of Saint-Malo, a commune in Brittany, France. He was one of the seven founding saints of Brittany. Malo was baptized as an adult by Brendan the Navigator and became his student. As a monk at Llancarfan Abbey in Wales, Malo was known for his participation in the Voyage of Saint Brendan the Abbot. As an immigrant to Brittany, he helped in the missionary work of Aaron of Brittany, was the first bishop of Aleth and established churches in the area of Brittany now named Saint-Malo in his honor. Malo was later driven from the area to Saintes, France by opponents of his mission. Details of Malo's career have been preserved in three medieval 'Lives' that seem to include incidents associated with multiple people bearing a similar name. It appears that Malo was probably born in Wales in approximately 520. Malo's name may derive from the Old Bretonmachlou, a compound of mach "warrant, hostage" and lou "brilliant, bright, beautiful".
Voyages with Brendan
After his baptism, he became Brendan's favourite disciple. He may have accompanied Brendan on his famous voyage. According to the Voyage of Saint Brendan the Abbot, Brendan and Malo left Llancarfan Abbey with several companions and discovered the "Island of the Blest". He then went to sea on a second voyage and visited the Island of Cézembre, remaining there for some time. During their travels, they encountered Maclovius, a dead giant whom Brendan temporarily revived with his holiness. Brendan baptised him before the giant returned to his grave. It is thought that Brendan, on the occasion of his second voyage, evangelised the Orkney Islands and the northern isles of Scotland. in a stained-glass window in Réguiny in Brittany, northern France.
At Aleth, Malo served under a venerable hermit named Aaron. Upon Aaron's death in 544, Malo continued the spiritual rule of the district subsequently known as Saint-Malo and was consecrated as the first Bishop of Aleth. In old age, the disorder on the island compelled Malo to leave, but the people soon begged him to return. He obliged his people and returned to restore order. Feeling at the end of his life, Malo was determined to spend his last days in solitary penance. Accordingly, he went to Archambiac, a village in the diocese of Saintes, where he passed the remainder of his life in prayer and mortification. His death, reported in Archingeay, came on November 15, 621.