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 Habsburg Monarchy II, the Austrian, later Austro-Hungarian Navy used a Naval Ensign ("Marineflagge") based on the red-white-red colours, and augmented with a shield of similar colours. Both of these flags became obsolete with Austria-Hungary's dissolution in 1918, and the newly formed rump state of German Austria adopted the red-white-red triband as its national flag. Today, the flag is similar to the flags of Munich, Germany and Namur, Belgium. Flag of the Habsburg Monarchy Since the days of Rudolph of Habsburg and the 1283 Treaty of Rheinfelden, the combination of red-white-red was widely considered to be the Austrian (later also Inner Austrian) colours