Yazhou was in Hainan Province.
Ancient Yazhou was located in Yacheng Town of modern day Hainan.
The Anyuan Province of the helm did not exist in real life. Helmsman is a Japanese novel that takes place in a fictional world. The novel did not give a clear definition or description of Anyuan Province, so it was impossible to determine which province it was in real life.
Danzhou is located in Hainan Province. According to document 4 and document 9, Danzhou was also known as Danzhou. It was the fourth prefecture-level city in Hainan Province. It was located in the northwest of Hainan Province and bordered the Beibu Gulf. Therefore, Danzhou was in Hainan Province.
The capital of the Qing Dynasty was Jinzhou, located in the Northern Qi of China.
I don't know what kind of novel or story 'Guan Shen' refers to.
" The Great River " was a TV series based on the novel " The Great River Goes East " written by Ana. The story in the play took place in the Anhui Province and Zhejiang Province. Cai Village, Jingxian County, Xuancheng City, Anhui Province, was the main filming location of the play, while Ningbo City, Zhejiang Province, was used as the Donghai City in the play. Therefore," The Big River " involved two places, namely, the provinces of Zhejiang and Anhui.
Yong 'an was a county-level city in Fujian Province.