Bank Zachodni S.A. was a

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...

based commercial bank that offered the normal range of retail and commercial banking services created in 1988 from a part of National Bank in South-Western Poland.

Allied Irish Banks Allied Irish Banks, p.l.c. is one of the so-called Big Four (banking)#Ireland, Big Four commercial banks in the Republic of Ireland. AIB offers a full range of personal, business and corporate banking services. The bank also offers a range of ge ...

bought majority of its shares in 1999 and merged it with Wielkopolski Bank Kredytowy in 2001 to form BZ-WBK (which changed its name to Santander Bank Polska in 2018).

References

Allied Irish Banks Banks of Poland Banks established in 1988 2001 disestablishments in Poland 2001 mergers and acquisitions Polish companies established in 1988 {{Poland-company-stub