Saint Matthias Feast Day May 14th, formerly 24 February

Saint Matthias was the person chosen, by the disciples to replace Judas Iscariot.
In the Acts of the Apostles we read that Peter stood up in the company - there were 120 of them in the room at the time and spoke about the need to replace Judas Iscariot who had betrayed Jesus. Two followers were nominated Matthias and Barnabas. The company prayed and the ‘lot’ fell upon Matthias.

Five traditions are mentioned in wikipedia.
The tradition of the Greeks say he planted the faith about Cappadocia and the coasts of the Caspian Sea, living near the port of Issus.
According to Nicephorus he preached first in Judaea and then Aethiopia (modern Georgia) - and stoned to death.
The Synopsis of Dorotheus suggests he went to Ethiopia and was buried near the temple of the Sun.
Another suggests he was stoned in Jerusalem by the local populace and then beheaded.
According to Hippolytus he died of old age in Jerusalem.

His Feast day, in the Roman calendar, was 24th February (25th on a leap year) . In 1969 it was transfered to 24th of May.

I have included the prayer for Saint Matthias .

Sources wikipedia and the Church’s year by Charles Alexander.