The construction of the square was carried out between 1656 and 1667 at the hand of Bernini, with the support of Pope Alexander XII.
ການກໍ່ສ້າງຂອງມັນໄດ້ຖືກປະຕິບັດໃນລະຫວ່າງປີ 1656 ແລະ 1667 ຢູ່ໃນມືຂອງ Bernini, ໂດຍການສະຫນັບສະຫນູນຂອງ Pope Alexander VII.