Conversation so far:
where is czech republic located in the world
The Czech Republic (officially known by its short name, Czechia) is a small landlocked country in Central Europe, situated southeast of Germany and bordering Austria to the south.
how does the flag of Czech Republic look like
The flag of the Czech Republic consists of two equal horizontal bands of white on the top and red with a blue isosceles triangle based on the hoist side.

Question: who designed the flag
Self-contained rewrite: who designed the czech republic flag