 The western rump of Hungary over which Ferdinand retained dominion became known as Royal Hungary.As the ruler of Austria, Bohemia and Royal Hungary, Ferdinand adopted a policy of centralisation and, in common with other monarchs of the time, the construction of an absolute monarchy.In 1527, soon after ascending the throne, he published a constitution for his hereditary domains ("") and established Austrian-style institutions in Pressburg for Hungary, in Prague for Bohemia, and in Breslau for Silesia.