Annual maintenance work will take place again this summer, which is why the reading rooms at the Heldenplatz location and in all collections will be closed from Saturday, July 26, to Wednesday, August 5, 2026.
Due to the shutdown of the ordering system, no media orders can be accepted from Friday, July 24, 2026, 4 p.m. to Wednesday, August 5, 2026, 4 p.m. The regular opening hours will then apply again from Thursday, August 6, 2026.
The study room of the Albertina is closed from July 15 to August 15, 2026.
Support the Austrian National Library in conserving precious cultural treasures such as the "Black Hours" for future generations. With your donation you make an important contribution to the continuity of our common cultural heritage and and enable the sustainable conservation of this centuries-old, priceless manuscript for future generations.
Please help! Thank you very much for your contribution.
Your donation is tax deductible!
The "Black Hours" of Galeazzo Maria Sforza is one of the most precious items in the Austrian National Library's collection. This rare and extremely valuable 15th-century manuscript is also known as the "Black Hours", named after its deep black parchment pages with a text in gold and silver ink and an elaborate ornamentation. However, the manuscript's unique aesthetic also poses the greatest challenge to its preservation. The iron gall ink used to colour both sides of the parchment dramatically breaks down the collagen fibres, causing the pages to become brittle. An elaborate conservation project is dealing with saving this important treasure. Your donation preserves cultural heritage!
Bank account:
BAWAG (BLZ 60.000), Wiedner Gürtel 11, 1100 Vienna
BIC: BAWAATWW
IBAN: AT38-6000-0000-9605-0710
Your donation is tax deductible!
We will gladly advise you personally!
Contact:
Michaela Hübner
Sponsoring and Event Management
Tel.: +43 1 534 10-263
spenden[at]onb.ac.at
Our website uses cookies: in addition to those that are technically necessary for the functionality of our website and therefore cannot be rejected, we also use those whose purpose is to analyse website accesses, as well as those set by third-party providers such as Youtube and Google. With your consent to analysis and third-party cookies, data is processed both by us and by third-party providers, some of which are based in third countries (e.g. the USA). You can find more information about the tools and the partner:s in our data protection declaration. If you wish, you can adjust your cookie settings individually at any time via the link in the footer.
These cookies are necessary for the basic functions of the website. You can block or delete them in your browser settings, but then there is a risk that some parts of the website will not function properly.
Required to obtain consent for certain cookies and thus for the use of certain tools.
Required to maintain an active chat connection between you and the library and to save your session preferences (e.g., sound on/off).
If you activate Matomo, we can analyse your use of our website in order to adapt and further improve our services. The following cookies may be set:
If you activate YouTube, videos from this provider will be displayed on our website. The following cookies may be set:
If you activate Vimeo, videos from this provider will be displayed on our website. The following cookies may be set:
If you activate Google Maps, maps from this provider will be displayed on our website. The following cookies may be set:
If you activate Google Arts & Culture, maps from this provider will be displayed on our website. The following cookies may be set:
If you activate Beko Showcase, maps from this provider will be displayed on our website. The following cookies may be set: