Favus of Pannonhalma

King Béla IV of Hungary also permitted him to build Zengő Castle at the top of the namesake mountain; the ruin is located northwest of Pécsvárad, approximately 3.5 km as the crow flies.

Pope Alexander entrusted Favus and three other abbots to visit all monasteries in the kingdom in order to restore discipline and monastic rule and to summon a general assembly of the Benedictines in Hungary.

[4] Favus was also involved in various lawsuits over the boundaries of their possessions with neighboring lords, free people and Zselicszentjakab Abbey, for instance in the settlements Fény, Hegymagas, Tényő and Nyulas (today Jois, Austria), Patvaróc, Derbéte and Lubó.

[5] Following the Mongol invasion, King Béla IV abandoned the ancient royal prerogative to build and own castles, promoting the erection of nearly 100 new fortresses by the end of his reign.

Béla considered the fort as "strong and useful", as a result he took back Szigliget and its castle and handed over to his faithful confidant Maurice Pok in 1262, who possessed several landholdings in the region.

According to historian Károly Kozák, Favus decided to build Szigliget Castle in order to be able to fight successfully in the event of an attack, as in Pannonhalma, and to provide shelter for the surrounding population.

In contrast, Annamária Bartha considers Béla IV initiated the process, who, in order to increase the military resistance of the kingdom, delegated to his subjects the task of building the castle, giving it possession for their construction and maintenance.

It is possible that Béla IV handed over the castle to Maurice Pok because a civil war broke out between him and his son Duke Stephen, and he wanted to entrust the fortifications of his kingdom to militarily skilled nobles.

For instance, he had to ensure the payment of annual 300 silver marks from the Archdiocese of Esztergom's income to the elected cardinal Stephen Báncsa since 1253–1254, who unsuccessfully tried to return to Hungary due to financial difficulties.