Milegast, born at the end of 8th century, or in the beginning of the 9th century, was the eldest son of Liub, a ruler of the Confederation of the Veleti, located in Western Pomerania, in Central Europe. He had a younger brother, Cealadragus.[1][4]
His father died in 823, in the battle fought against the tribe of Obotrites.[1][5] After his death, Milegast succeeded to the throne, becoming the ruler of the Confederation of the Veleti. He had ruled against the tribal customs and attempted to strengthen his ruling power and weaken the power of the tribal meetings. This led to an uprising in 823, in the result of which, he was deposed, and replaced by his brother, Cealadragus. In the same year, in the meeting in Frankfurt, Emperor Louis the Pious, ruler of the Carolingian Empire, had validated Cealadragus's claim to the throne, ending the dispute between brothers.[2][3][4]