Tüköry Mansion in Dioš (Diósszentpál), Croatia, was designed by architects Ernő Foerk and Gyula Sándy in 1904. It is situated near the Central Slavonian town of Končanica and in close proximity of Daruvar, on an estate that belonged to Tüköry family. The late-historicist country house was commissioned by Paula von Falkenberg, a widow of Alajos Tüköry de Algyest, as a permanent residence for her and her three children. It was built in the eclectic late-historicist style of fin-de-siècle Hungary, highly inspired by the late-mediaeval art and architecture of northern Italy. Those stylistic influences were strongly manifested in the architectural design of the mansion, but even more its great hall, the focal point of its layout, designed in 1904–05. Based on both archival and terrain research, this paper aims to determine the main factors of cultural and architectural identity of the mansion by elucidating its history and stylistic genealogy.