On 21 March a joint demonstration of Germans and Poles took place, Germans often wore both the Black-Red-Gold cockade and the Polish Red-White as a revolutionary symbol.
21. märtsil leidis aset sakslaste ja poolakate ühismeeleavaldus, sakslased kandsid revolutsioonilise sümbolina sageli nii must-puna-kuldset kokardit kui ka poola puna-valget.