The Garzarollis were originally from Bergamo, where they were part of the local patriciate. They most probably came to Slovenia—specifically, Senožeče (Ital. Senosecchia, Germ. Senosetsch) and Gorizia (Germ. Görz)—at the end of the sixteenth century or in the early seventeenth century, at the initiative of the Counts (and later Princes) of Porcia. One of the first Garzarollis in Slovenia was Franz Garzarolli, who was buried in the Senožeče parish church in 1610. In the seventeenth century, several lineages were also granted the rank of nobility in the Austrian hereditary provinces; for example, the brothers Johann Jakob and Elijah in 1620 and Prosper a year later (1621), and in 1647 the imperial military commissioner Matthias Garzarolli (his branch was also elevated to knighthood in 1724) was ennobled with the predicate Garzarolhoff. The Garzarollis in Carniola experienced their landmark year in 1666, when Emperor Leopold I ennobled the brothers Johann Jakob and Pompeus from Senožeče and added the predicate Thurnlackh to their family name. In the early eighteenth century, this line, which has survived to the present day, split into the following three branches: the Senožeče, Trieste (extinct), and Postojna branches.
The Senožeče branch initially had its family tomb in St. Anthony’s Chapel in the local St. Bartholomew’s Parish Church and then erected a new tomb on the eastern side of the church in the nineteenth century and enclosed it with iron railings. The Garzarolli coat of arms is carved above its entrance, featuring the initials F[ranz] G[arzarolli] and the year 1896.

Sources:
Dolenc, Ervin: Senožeče: skupnost na prepihu. Koper, 1994, p. 24.
Preinfalk, Miha: Plemiški nagrobniki kot kulturni spomeniki. Gliptoteka. Razvojna možnost kiparstva v Ljubljani (eds. Jiři Kočica et al.). Ljubljana, 2007, pp. 59–72.
Wiener genealogisches Taschenbuch 1927/28, pp. 85–87.