Refers to the Forbidden City (Miyagi) in the Six Dynasties, also known as the "Garden City", which was used for the office and residence of the emperors at that time. At that time, Jiankang was composed of Guocheng, the capital (Shi Jing) and Miyagi (Taicheng, another Taicheng has an inner city) from the outside to the inside, and the country was a suburb. Mai Rong Zhai continued Taicheng Shaocheng: "In Jin and Song Dynasties, it was said that the imperial court banned the province as Taiwan, so it was called Taicheng." According to the reporter's understanding, the "Taicheng" in the Jin Dynasty was built in the south of Jiming Mountain in Nanjing and north of the Yangtze River. Its land was originally Wuhou Garden City in the Three Kingdoms period. The Eastern Jin Dynasty proclaimed itself emperor and rebuilt it into a new palace, thus becoming Miyagi. Qi, Liang and Chen Dou are the provinces of Taiwan Province (referring to the central government, Jin and Song said that the forbidden province was Taiwan Province, so it was called) and the seat of the palace, because of its proper name. Song Chen Liang's Book of Filial Piety in Wu Shen: "Taicheng is on the side of Zhongfu, and its land is under the highland. Pinggang in the East Ring Road is considered solid, stone in the West City is considered heavy, Xuanwu Lake is considered dangerous, and Qinhuai and Qingxi are the obstacles. "
"With the fall of Taicheng, Jane's essays are in Zhongshu Province, and I pay tribute to Jane's essays with a beautiful scenery." -"Chen Shu does not harm the biography"
"From grassland to Wu Palace, from green land to the old garden east of Taicheng."-Han's poem "Stone City"
"Southland this natural and unrestrained, six generations of luxury. Taicheng's business can be returned to Gongwa. " -Song He Zhu's "Shuidiao Getou Taicheng Tour" According to "Shangjiang County Records", "The back city of Jiming Temple was built when the capital was expanded in the Ming Dynasty." Zhu Yuanzhang, the Ming emperor, probably wanted to build a wall behind Jiming Temple and connect the stone city to the west through Gulou Mountain. Later, in order to enclose Jiming Mountain, Lion Mountain, Maanshan and Shitou Mountain into the city, the building scope was expanded. So the 250-meter-long fence behind Jiming Temple had to be abandoned.
In addition, according to the research of some historians, the location of the wall of Nanjing Taicheng is the former site of the Eastern Jin Dynasty and the Southern Dynasties, which is called Taicheng by China historians. As the ruling center of the Six Dynasties feudal dynasty, Nanjing Taicheng City Wall is located in the northeast of the central part of the capital, in the area of today's Southeast University. It is the political, military and ideological and cultural ruling center of the Eastern Jin Dynasty and the Southern Dynasties, representing the rise and fall of the "Six Dynasties Gold Powder". During the Six Dynasties, the size of the palace was very large. There were more than 3,500 large and small palaces in the Eastern Jin Dynasty alone. In the Southern Dynasties and the Four Dynasties, there were many halls and halls. This backstage city has been destroyed many times in history. The first time was the Hou Jing Rebellion, the second time it was "cooler than Hou Jingling" when Taicheng was recovered three years later, and the third time it was the Sui Dynasty that destroyed Chen and leveled the "Quegong" of Jiankang. In the Five Dynasties and Ten Kingdoms, Yang Wu built Jinling Fucheng three times, and Taicheng was completely abolished.
In the 12th year of Liang Datong in the Southern Dynasties (AD 546), Hou Jing rebelled, and Liang Wudi starved to death in Taicheng. In the 12th year of Chen Taijian (AD 580), the Sui army went south and captured Chen Houzhu alive in the rouge well. These experiences have made Taicheng famous in the world, although there is no trace to be found. Scholars of all ages never forgot to pay their respects to Taicheng when they came to Jinling, leaving many unforgettable poems. For example, Wei Zhuang, a famous poet in the Tang Dynasty, once praised: "The most heartless Taicheng willow is still a ten-mile dike." His poems are very famous. Due to the cold world, the ancient Taicheng has long since disappeared. Later generations connected the willows of Xuanwu Lake with Taicheng according to the Wei Dynasty, and attached a section of open wall behind Jiming Temple as Taicheng. The wall length from Taicheng to Taipingmen is 1.7 km. In Taicheng, there is Amin City Wall Museum. Boarding the city, overlooking the lush mountains in the east, the mountains are ethereal and bright; Enjoy the Xuanwu Shili smoke willow in the north, and the smoke waves are vast; Jiuhua Pagoda in the south is swaying, and the pagoda is towering; Cocks crow in the west, yellow walls and blue tiles, and the bells of ancient temples are ringing. In addition, the weeping willows under Taicheng, the Arctic Pavilion, the former site of Academia Sinica, Song Ziwen House and other buildings are picturesque and surrounded by green trees, so "it is still a smoke cage ten-mile dike".