The building in Kecske Street (German: Geissgasse, today in Slovak: Kozia ulica), no longer extant, was ceremonially opened in the spring of 1827, with a monumental facade displaying the Apponyi heraldic arms and the Latin inscription LITERIS IN PATRIA AUGENDIS ("for the development of letters in the fatherland").
In particular, Count Lajos Apponyi sold a "choice portion" of it "comprising extraordinarily rare works" at Sotheby's in London in November 1892.
The damaged books were restored in Martin, then the library was again transferred to storage in Diviaky (Turčianske Teplice) [sk] in 1992, and eventually reinstalled in Oponice in 2011 following the Apponyi castle's renovation.
[5] The next major figure in the library's management was Karl Anton Gruber von Grubenfels (1760–1840), a lesser nobleman from Szeged who also authored a number of fiction works, poems and theater plays in German as well as a Historia linguae ungaricae (History of the Hungarian Language) published in Pressburg in 1830.
[1] This is ironic but not surprising, given the comparatively late emergence of Slovak as a written language, and the Apponyi family's association with Magyarization policies.