Flag of Poland the other two. Due to the horizontal bicolor being a relatively simple and widespread flag design, and white and red being the most popular colors used on flags, there are many flags worldwide that are similar or near identical to the flag of Poland despite being unrelated to it. For example, the historical flag of Bohemia, the major historical region of Poland's southern neighbor, the Czech Republic, consists of two horizontal stripes, white on top and red on bottom. Similarly to the flag of Poland, it is of heraldic origin, the coat of arms of Bohemia being "Gules, a lion
Flag of the Netherlands the national coat of arms on the white stripes. From the same period dates the custom, prescribed spontaneously by popular will, to fly an orange pennant together with the national flag as a sign of allegiance of the people to the House of Orange. The pennant is added on King's Day (Dutch: "Koningsdag", April 27) or other festive occasions related to the Royal Family. On February 19, 1937, a Royal Decree issued by Queen Wilhelmina finally laid down the red, white and blue colours as the national flag (heraldic colours of bright vermilion, white and cobalt blue). The flag of