St Cyril (827? - 869)
He was born in Thessalonica. With his brother Cyril he went to Moravia to preach the faith. They translated liturgical texts into the Slavonic language and invented the Glagolithic and possibly also the Cyrillic alphabet. After his brother’s death he went to Pannonia, where he was assiduous in the work of evangelization. In the complicated international politics of the time he suffered much from attacks by his enemies, but he was always supported by the Popes. He died on 6 April 885.