Background
He was born in the village of Grciste, Ottoman Empire (nowadays in Bogdanci, Republic of Macedonia) in 1870.
He was born in the village of Grciste, Ottoman Empire (nowadays in Bogdanci, Republic of Macedonia) in 1870.
At the outbreak of the Macedonian Struggle in 1904, he organized a troop against the pro-Bulgarian Internal Macedonian Revolutionary Organization komitadjis, acting in an area covering Grciste, Gevgelija and Doirani. When captain Michalis returned, he organized a troop and went to the village of Mervintsa, where the komitadjis were hiding. In the subsequent battle, he was wounded and went to Gevgelija to recuperate (January 1905).
After the First Balkan War, Grčište came under Serbian control, and Sionidis moved to the village Matsikovo (modern Evzoni), on the then Greco-Serbian border.
During the Balkan Wars, King Constantine I of Greece established his headquarters in his house. Sionidis participated in the Battle of Kilkis-Lahanas, where he was injured.
Following the end of World War I, Sionidis, as president of Matsikovo community, retrieved the remains of nine evzones who had been killed by the Bulgarians during the Second Balkan War, and buried them in his village. In 1927, the Renaming Committee renamed Matsikovo as Evzoni.
Michael Sionidis died in 1935.