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Privacy Policy

1. Controller

The controller of your personal data is Lyons Weinberg Czech, s.r.o., Company ID 07305150, registered office Výjezdní 752/3, 160 00 Prague 6, Czech Republic, registered in the Commercial Register kept by the Municipal Court in Prague, Section C, Insert 298779 (“controller”, “we”).

Contact: This email address is being protected from spambots. You need JavaScript enabled to view it., phone +420 777 03 24 24. We have not appointed a data protection officer.

2. Why and on what legal basis we process data

PurposeDataLegal basisHow long
Registration and bidder accountfirst and last name, e-mail, phone, address, login details, two-factor authentication settings where usedperformance of a contract (Art. 6(1)(b) GDPR)for as long as the account exists
Bidding and account servicesbids and automatic bidding limits, favourite and watched works, watchdog alerts, privilege requests, auction notificationsperformance of a contractfor as long as the account exists; bids on sold works as below
Purchase contract, invoicing, payment, collection or shippingidentification and contact data, billing and delivery address, payment and handover detailsperformance of a contract; legal obligations (Art. 6(1)(c) GDPR – accounting and tax law)10 years from the end of the accounting period
Offering a work for auction and the contract with its ownername, contact, description and photographs of the work, ownership detailssteps prior to and performance of a contract; legal obligationsoffer without a contract 1 year; concluded contract 10 years
Enquiries and communication (e-mail, phone, forms, chat)name, contact, content of the enquirylegitimate interest in handling the enquiry (Art. 6(1)(f) GDPR)until handled, at most 1 year
Newsletter and auction newse-mail, name, language, e-mail opens and clicksconsent; for our clients legitimate interest (Section 7 of Czech Act No. 480/2004 Coll.)until you unsubscribe (link in every e-mail)
Website security and form protectionIP address, technical browser data, login recordslegitimate interest in protecting the websiteat most 90 days
Anonymous traffic measurement (without cookies)page viewed, action on the website, shortened IP address (last part removed), device typelegitimate interest in knowing how the website is usedrecord on our server 90 days; in Google Analytics 14 months
Statistics with consent (Google Analytics)cookie identifier, behaviour on the website; for logged-in users a pseudonymous account number (no name or e-mail)consent (Art. 6(1)(a) GDPR)14 months
Ad measurement and targeting with consent (Google Ads, Meta)cookie identifiers, ad click identifier, pages visited, registrationconsent90 days (cookies); services per their policies
Record of cookie consentchosen categories, date and time, anonymous identifier, shortened IP addresslegal obligation to prove consent; legitimate interestwhile the consent is valid + 3 years

Providing data for registration, bidding and the purchase contract is necessary – without it we cannot enter into a contract with you. All other data is provided voluntarily. We do not carry out automated decision-making or profiling with legal effects; automatic bidding places bids only up to the limit you set yourself.

You may object at any time to processing based on legitimate interest. You may withdraw consent at any time – for cookies via the Cookies bar in the website footer, for the newsletter via the link in the e-mail or at This email address is being protected from spambots. You need JavaScript enabled to view it.. Withdrawal does not affect processing carried out before it.

3. Who receives the data

We share data only with those who need it for the given purpose; processors are bound by a data processing agreement with us:

  • INTERNET CZ, a.s. (Forpsi) – website and e-mail hosting, Czech Republic
  • semakin.cz – website development and maintenance
  • SuperFaktura – invoicing and payment matching
  • Acyba SAS (AcyMailing) – newsletter and e-mail delivery, France
  • Google Ireland Limited – Google Analytics, Google Ads
  • Meta Platforms Ireland Limited – Meta Pixel (only with consent)
  • Cloudflare, Inc. – form protection (Turnstile)
  • Šéfbot (sefbot.cz) – website chat window
  • carriers and shipping companies – when a work is shipped
  • public authorities where required by law

If you bid via Livebid.cz, its operator processes your registration and bidding data as an independent controller; we receive from it the data needed to conclude and perform the purchase contract.

4. Transfers outside the EU

Google, Meta and Cloudflare may also process data in the USA. Transfers are based on the European Commission's adequacy decision (EU–U.S. Data Privacy Framework) or on standard contractual clauses.

5. Your rights

You have the right of access to your data, to rectification, erasure, restriction of processing, data portability and the right to object. Send your request to This email address is being protected from spambots. You need JavaScript enabled to view it.; we will handle it without undue delay and within one month at the latest. You also have the right to lodge a complaint with the Czech Office for Personal Data Protection (Pplk. Sochora 27, 170 00 Prague 7, uoou.gov.cz) or with the supervisory authority in your EU country of residence.

6. Cookies

Details about cookies and how to change your consent are on the Cookie policy page.

This policy is effective from 24 September 2026 and replaces the policy effective from 1 May 2025.