Kawéntenan Kota Yogyakarta mawit saking Perjanjian Gianti duk tanggal 13 Februari 1755 sané kakukuhang olih Gubernur Nicholas Hartingh miwah Gubernur Jendral Jacob Mossel.
The beginning establishment of the city began with the Treaty of Gianti on February 13, 1755 who signed by the Netherlands under the signature of Governor Nicholas Hartingh on behalf of Governor General Jacob Mossel.