ከተማዋ በ 14-15 ኛው መቶ ክፍለዘመን የባይዛንታይን ንጉሠ ነገሥት ዘመዶች በሚተዳደሩት የፔሎፖኒዝ ዋና ከተማ ሆና አገልግላለች ።
Mystras was the capital of the Peloponnesus in the 14th and 15th century and was ruled by the relatives of the Byzantine Emperor.