After the Tatar invasion

In the middle of the thirteenth century, after the Tatar invasion, significant fortification work began all over the country. This was when the royal castle and the walled city were built on Castle Hill, on an elevated terrace of the Danube which could be easily defended. This third city was called Buda, its inhabitants presumable coming mainly from Pest. In the Middle Ages Buda gradually emerged from among the Hungarian towns, and it reached its peak in the second part of the fifteenth and the early sixteenth centuries.