He wrote the Legend of Benedict of Szkalka and Andrew Zorard, two hermits who lived in the region of Nitra in modern-day Slovakia.

Maurus's prestige in the new king's court is demonstrated by the deed of founding of the Benedictine Tihany Abbey from 1055 on which his signature is only preceded by that of the archbishop of Esztergom.

Although the cathedral and the bishop's palace were burnt on the next day, around that time Prince Géza asked the elderly Maurus to write a biography of Benedict and Andrew-Zorard, two hermits from the region of Nitra.

In addition to a narration of abbot Philip of Zobor, Maurus could base his work on his conversations with Benedict in his youth in the abbey of Pannonhalma.

[6] Pope Pius IX emphasized that "there are mass-books from 1499 which sing Blessed Maurus's praises, and his name was also recorded in Martyrologies".