He has already shown his religious sentiment in childhood; he prayed and disputed the life of saints at the age of ten, instead of "childish games and mischief".
Maurice inherited large-scale domains in Fejér, Veszprém, Sopron, Pozsony and Zala counties, becoming one of the wealthiest landowners in Transdanubia.
Maurice was first mentioned by contemporary records in August 1291, when he and Csák, already as adults, confirmed their late father's donation of the village Mizsérd in Pozsony County to their familiaris, a certain Egidius, son of Bajk.
[4] Both of them were styled with the title of magister, when they donated the village of Csatabér (today belongs to Pápoc) to their relatives, Peter and John in the same document.
Thereafter they agreed to divorce with a common will and jointly entered the Dominican Order;[6] Catherine became a nun in the monastery at Margaret Island, while Maurice joined to the convent in Buda.
[8][6] A large portion of his properties were inherited by his closest living relative, Peter Csák, who sold his heritage, the castle of Ugod and its accessories to the powerful Transdanubian oligarch, Ivan Kőszegi (Maurice's maternal uncle) soon after.
[10] Maurice distributed his fortune over the next decades: Returning to Hungary, in January 1309, he donated the family's important seat, Pápoc to the nuns of Margaret Island, where his mother and former wife lived.
[7] In March 1309, Maurice mortgaged the village of Balf in Sopron County to Jekelin and Keneplin in order to settle his debts, which were arose upon his wedding ceremony.
[10] His "relative", Nicholas Hahót was granted the villages of Komár and Galambok in Zala County by Maurice Csák in 1331, while he also donated Boglárfalu (near Székesfehérvár) to the Himfi family in 1332.
[8] In connection with the distribution of his wealth, his legend preserved a story: Maurice wished to recover his previously abandoned goods in order to donate them to the monastery of Margaret Island, but "king" Nicholas ["son of George"] refused his request after their conversation [in the autumn of 1313].
], Bishop Nicholas of Győr and Andrew [in early 1314], and ordered them to hand over the goods for the monastery, according to Maurice's request, who predicted his death and thus "he has a holy and prophetic soul".
Maurice made the sign of the cross and said "Whoever you are, I command in the name our Lord Jesus Christ, to be still, and do not you dare disturb me anymore".
At the hour of his death, a Dominican friar of the monastery of Győr, sub-prior Benedict, who traveled to Buda, had a dream: he saw his companions at the table of refectory, all of them wore hood but Maurice.
The head of the Dominican province of Hungary also claimed that Maurice Csák appeared in shiny attire in his vision in the morning during his praying and announced his death.
The legend also says, when a blind man picked up a heap of earth from Maurice's grave, and daubed his eyes with those, he regained his eyesight.
The first preserved version of his hagiography was written by Dominican preacher Girolamo Albertucci de Borselli [it] in the appendix of his work, the "Cronica gestorum ac factorum memorabilium civitatis Bononie" (1497), alongside the legends of fellow Hungarian Dominicans Saint Margaret and Blessed Helena.
The Acta Sanctorum, which was compiled by the Bollandists contains the Taeggio version of Maurice Csák's hagiography too, also with the name variants provided by Alberti.
[20] One of the frescos of the Church of San Nicolò in Treviso by Tommaso da Modena (1352) depicts Maurice Csák with the caption "B. Fr.
fuit nobilitatis, mansuetudinis et humilitatis decus preclarissimum, puritatis et munditie fios venustum, in multis claurit miraculis".