Ernst Moritz Theodor Ziller was a German-born university teacher and architect who later became a Greek national. In the late 19th and early 20th centuries, he was a major designer of royal and municipal buildings in Athens, Patras, and other Greek cities.

Patras is Greece's third-largest city and the regional capital of Western Greece, in the northern Peloponnese, 215 km (134 mi) west of Athens. The city is built at the foot of Mount Panachaikon, overlooking the Gulf of Patras.