When is the high arch of the pagoda Murong?

Time of Murong high arch in the floating pagoda: the start time is 576 years 1 February, and the end time is 577 years1month. According to relevant public information, the prototype of Murong high arch is high latitude. Embarrassed, however, the Longhua period in history was very short, lasting only one month, from 576 1 February to 5771month. In other words, Gao Wei became emperor for a month and then abdicated.