![Flag of autonomous region of Portugal - Madeira: yellow and blue vertical stripes with red bordered white cross on central band Stock Photo - Alamy Flag of autonomous region of Portugal - Madeira: yellow and blue vertical stripes with red bordered white cross on central band Stock Photo - Alamy](https://c8.alamy.com/comp/JB29HY/flag-of-autonomous-region-of-portugal-madeira-yellow-and-blue-vertical-JB29HY.jpg)
Flag of autonomous region of Portugal - Madeira: yellow and blue vertical stripes with red bordered white cross on central band Stock Photo - Alamy
![I put all two-color permutations of the Red/Blue/Yellow/White Nordic Cross together on a single flag : r/vexillology I put all two-color permutations of the Red/Blue/Yellow/White Nordic Cross together on a single flag : r/vexillology](https://preview.redd.it/ba47djz4so5x.png?auto=webp&s=7fa774c6d9e7121cf415c36faade3c5ac5afd3ec)
I put all two-color permutations of the Red/Blue/Yellow/White Nordic Cross together on a single flag : r/vexillology
![A flag for a union between Sweden (blue field, yellow cross), Denmark (red field within yellow cross, white cross), and Norway, (red field, white cross, blue cross). 2nd Kalmar Union anyone? : A flag for a union between Sweden (blue field, yellow cross), Denmark (red field within yellow cross, white cross), and Norway, (red field, white cross, blue cross). 2nd Kalmar Union anyone? :](https://preview.redd.it/9f6uuji9fsi41.jpg?auto=webp&s=08d10fa7c665af5fa4e62bde1c82bbc1f3a9ed5f)