His father Stephen was a pretender to the Hungarian throne, who lived in exile and was regarded as bastard by the ruling Árpád dynasty in Hungary.
In the document, Stephen also mentioned his two natural sons without specifying their name and age, who he financially and hypothetically took care of from the incomes of Slavonia and Este, after his heir Andrew takes possession of these two estates.
[1] When Andrew III succeeded the Hungarian throne in 1290, both Aimericus and Tralusius arrived to Hungary in the following months or years, in order to receive a share of the property of the acquired Slavonia in accordance with his father's above-mentioned last testament.
In an undated royal charter, Andrew III postponed a payment obligation because he was in Visegrád with his brother ("frater") Tralusius, who bore the title of comes.
In April 1301, upon the order of Pope Boniface VIII, the royal chancellor and Archbishop of Kalocsa John Hont-Pázmány entrusted the abbot of Pilis and Paul, cantor of Buda to persuade the people to move back from Szentendre to Kékes, otherwise they will be excommunicated.