Robert Kennaway Douglas, Encyclopædia Britannica, Ninth Edition…
“ In the north-east corner of the town stood the imperial palace reared by Hung-woo, the imperial founder of the modern city. After suffering mutilation at the time of the overthrow of the Ming dynasty, this magnificent building was finally burnt to the ground on the recapture of the city from the Taiping in 1864. But beyond comparison the most conspicuous public building at Nanking was the famous porcelain tower, which was designed by the emperor Yung-lo (1403–28) to commemorate the virtues of his mother. ”
