A month after the signing of the Treaty rather Giyanti Thursday Pon dated 29 Jumada 1680 or March 13, 1755, Sultan Hamengku Buwana I proclaimed the founding of the Sultanate with the capital Ngayogyakarta Ngayogyakarta and have half of the kingdom of Mataram. Proclamation is the case in Pesanggrahan Ambarketawang and known as Nagari Hadeging events Dalem Sultanate of Mataram - Ngayogyakarta. On Thursday 3rd sura Pon 1681 or coincide with the date of October 9, 1755, Sri Sultan Hamengku Buwana I ordered to build in the Village Ngayogyakarta Beringan Pacethokan the Forest that was originally named Garjitawati.
Development of this capital city of Yogyakarta Sultanate takes one year. On
Thursday the 13th Sura Pahing 1682 to coincide with the October 7,
1756, Sri Sultan Hamengku Buwana I and the family moved or boyongan of
Pesanggrahan Ambarketawan into Ngayogyakarta. Transfer
event is marked by moon dragon Dwi sengkala Memet a single sense of the
latter two dragons entwined tail and inscribed on the Banon / color
baturana joint majesties Dalem Regol Kemagangan and Regol Gadhung
Mlathi. The
momentum transfer is used as the basis for determining the Day
Yogyakarta because from then on a wide range of facilities and buildings
to accommodate activities supporting good governance of social,
political, economic, cultural and shelter was built in stages. Based
on all the Day of Yogyakarta is determined on the date of October 7,
2009 and confirmed by the city of Yogyakarta Regional Regulation No. 6
of 2004.
Source : Minutes of Local Regulation of Yogyakarta No. 6 of 2004.
