We investigate the determinants of European banking market integration with a focus on the potentially limiting role of cultural and political factors. Employing a unique data set of European cross-border loans and deposits, the study uses various gravity models that are augmented by societal proxies. While trade-theoretic reasoning can explain part of the surge in cross-border banking, we demonstrate that distance and borders still matter in the geography of European cross-border banking. Moreover, we can identify cultural differences and different legal family origin as important barriers to integration