Which tomb was first excavated in the Ming Tombs?

According to the declassified documents, the "Request for Instructions Report" of the Ming Emperor's Mausoleum is not Dingling at all, but Judy's Changling Mausoleum. Judging from the published data, there was no special document at the beginning of Dingling's excavation, but a report on the excavation of Ming Changling. Changling was buried with Empress Xu (the daughter of the founding hero Xu Da, the former Princess Yan), and it took seven years before and after the whole construction. In the 22nd year of Yongle (1422), Judy died during the northern expedition to Inner Mongolia, and was buried in Changling in December of that year, and the underground palace was permanently sealed. By 1956, Judy, who had been lying quietly in the underground for 534 years, seemed doomed and determined to be excavated by the red-headed documents. However, things just changed. At that time, Xia Nai, a member of the "Changling Excavation Committee", was responsible for the specific technical guidance of excavation, so he asked his student and later director of the Capital Museum, Qichang Zhao, to do preliminary research. It snowed heavily when I went to Changling. Qichang Zhao took Zhao Tonghai, an exploration worker, around Changling for two or three days and found no exploration clues. After reporting to Xia Nai and Wu Han, the vice mayor of Beijing who first proposed to excavate Changling, after several discussions, it was decided to try to excavate the tomb of Judy's eldest son, Zhu Gaochi, before excavating Changling. Zhu Gaochi was a late bloomer. Unlike his younger generation, Zhu Yijun and other little emperors, he didn't succeed to the throne until he was 47 years old and was named Hongxi. Probably there was no emperor's life, and the emperor died after 10 months. The temple is called Renzong, and the treasure land is called Fairy. Because of his short reign, his tomb can't be too big. It is simplified from the regulation of Changling, with only basic buildings, which can be said to be a "simplified version" of Changling. The terrain in front of Xianlingbao City is narrow. At that time, in order to ensure that Long Mai was not broken and the geomantic omen was not injured, the Temple of Grace was reduced, and the Ling Palace was divided into two halls because of the distance between mountains. So when you travel to the Ming Tombs, you will find it really shabby compared with his father's Changling. In the past, the Jade Mountain where Fairy was located was only called "Tu Gang" in Changping landscape, which shows that the location of Fairy was hasty or imprecise. Just as archaeologists were bent on excavating the ancient tomb, Wu Han and Xia Nai changed their minds. It is considered that offering the tomb is of little significance, and even if it is open, it will not bring much valuable reference to the excavation of Changling. First, Wu proposed to try to dig the yongling mausoleum of Emperor Jiajing, which was strongly opposed on the grounds that it was no different from digging the Changling mausoleum. Trying to dig the tomb of the late emperor Zhu Youjian, haing s ngor found it boring. It's too small, and it was rebuilt from the imperial concubine's tomb. Later, Wu and Xia turned their attention to Dingling.