What were the name of the two Moravia brothers who created a Slavic alphabet?

The two Moravia brothers who created a Slavic alphabet were Saints Cyril and Methodius. They developed the Glagolitic alphabet in the 9th century to aid in the Christianization of the Slavic peoples. This alphabet later evolved into the Cyrillic script, which is used in many Slavic languages today. Their work significantly contributed to the cultural and religious development of the Slavic nations.