The ensign of Denmark is one of the most oldest national flags nonetheless in use in the present day; that includes a white pass on a purple

https://aged-wiki.win/index.php/Remembering_the_Fallen:_Symbols_of_Sacrifice_and_National_Memory

The ensign of Denmark is one of several oldest countrywide flags still in use in the present day; providing a white cross on a pink history also known as Dannebrog dates returned a minimum of to the 13th century as an emblematic illustration.