This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help.
Summary
DescriptionFlag of Northumbria (palatine purple).jpg
English: For use on Northumbria to represent the flag described by Bede in ‘Historia Ecclesiastica Gentis Anglorum’. Description of the flag in the tomb of the seventh century King Oswald, who had united Bernicia & Deira. Bede recorded the flag as “…they hung up over the monument his banner made of gold and purple”.
Date
Source
Own work
Author
Chocolateediter
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.