Kyrillos and Methodios the Greek Byzantine saints (Cyril and Methodius)
http://history-of-macedonia.com/wordpress/2007/02/12/sources-on-st-cyril-and-methodius-greek-ethnicity/
http://history-of-macedonia.com/wordpress/2007/09/19/sources-about-st-cyrillos-methodios-cyril-methodius-ethnicity/
All neutral sources mention that the two brothers had Greek names (we are keeping in mind Cyril was baptised as Konstantinos), they were members of a noble family, their father Leon was a Greek military man and their mother of slavic background. Furthermore both brothers were born in Thessaloniki, were educated in Konstantinople where they took a highly Byzantine education and lived all their lives into Byzantine Empire apart from the fact they were send out on missions to bring christianity to various regions.We can find the following evidence from records of their Greek conscience on the Honorary Volume to Cyrillos and Methodios for the 1100 years, Thessaloniki-1968 by Henriette Ozanne. For example, the below for Cyrillos:In his dialog with the Muslims, he points out that every science stem from us implying the Greeks and the Greek culture .During the Hazars mission, the hagan of the Hazars asked him what present he wished to have offered to him and he said Give me all the Greek prisoners of war you have here. They are more valuable to me than any other present Scientif Annals of the Theology Faculty of the Thessaloniki University (1968) Also many non-Greeks accept that the 2 brothers were Greeks:The Slav Pope John Paul II who in 31/12/1980 (in an official encyclical-Egregiae Virtutis-to the Catholic Church) and 14/2/1981(in the S.Clement church in Rome) said that Cyrillos and Methodios were Greek brothers, born in Thessalonikithe Serb historian V.Bogdanovich, says that Kyrillos and Methodios were born in Thessaloniki and were Greeks in origin, not Slavs (History of the ancient Serbian literature, Belgrade 1980, pg.119).To anyone that has no ties with blind nationalism, it seems to be no doubt that Cyrill and Methodius were Greek, not only by birth but most importantly culturally as it was analyzed above.
HELLAS GREECE ΚΥΡΙΛΛΟΣ ΜΕΘΟΔΙΟΣ KYRILLOS CYRIL METHODIOS MACEDONIA MAKEDONIA MACEDON MAKEDON BYZANTINE EMPIRE VASILIOS II BASILIOS BASIL BYZANTIUM MAKEDONIJA SAMUIL CZAR BULGARIAN SKOPJE FYROM VARDARSKA MORAVIA CYRILLIC ALPHABET