Cyriacus Bril was not a widely recognized artist, and there may be some confusion with the more famous Paul Bril, a Flemish landscape painter. Paul Bril (1554–1626) was indeed a prominent figure in the development of landscape painting in Rome during the late 16th and early 17th centuries. Born in Antwerp, he moved to Rome around 1570 and his work had a significant influence on the development of landscape art.
Since Cyriacus Bril does not correspond to a well-documented figure in art history, it's possible that there might be a mix-up with the name or that Cyriacus Bril was a lesser-known or obscure artist whose life and works have not been well-recorded or preserved in art historical texts. Without substantial historical records or scholarly references, providing a detailed biography of Cyriacus Bril is challenging.
However, if we consider the possibility of Cyriacus being a member of the Bril family, which was indeed a family of artists, it's conceivable that he could be a lesser-known relative of Paul Bril, working in a similar period and possibly influenced by the same artistic trends of the time. Landscape painting in the 17th century was characterized by a greater interest in naturalism and the effects of light, which had been pioneered by artists like Paul Bril.
In the absence of specific information about Cyriacus Bril's life and career, one can only speculate about his potential contributions to art history. It is important to note that during the 17th century, many artists trained and worked in the workshops of more established painters, leaving behind few individual traces of their careers. Consequently, if Cyriacus was indeed an artist of this period, his works might be obscured by the larger shadow of his contemporaries, and particularly by the renowned members of the Bril family.