There is a legend .At beginning of Zhou Dynasty(
about 17 or 16 century B.C.) ,or someone says it happened in King
Zhoulie Period (about 4th century),there was a person named kuangsu...He
practiced austerities in Mount Lushan...It is said that kuangsu'style
name was "Junshao", some books call him "Kuangyu"
or"Kuangxu",and style name was "Zixiao", but
"Yu" sounds more reasonable by the look of China's traditional
name and antithetical couplet justice of the word , so "Su"and"Xu"
was the device sound of his name by rumors. But name that spread
generally to claim it is "Su" ,and very few people know
the name "Yu" now.. For being convenient, here we follow
the call which people know well. In addition,people claim"Kuangsu"
as "Lusu" because of the famous mountain. Regard name
of the place as surname also accord with the ancient convention
. As for he exact surname, we need not investigate ,and have record
to investigate. It is said Kuangsu' practicing austerities in Mount
Lushan was learnt by imperial court. Then the emperor invited him
to come out of retirement and take up an official post to aid time
and again , but Kuanhsu refused the invitation time and again by
Slipping into the remote mountains. Later, Kuangsu diappeared without
a trace. Someone says that he has gone to become the celestial being,.
This is a baseless gossip naturally . Later on people beautified
story of Kuangsu, and called the place where he stayed " the
immortal's hut" ,and name of Mount Lushan come out. Also people
name Lusahn after Kuangsu's surname as "kuangshan". Arrived
Song dynasty, for avoiding using the same word as the name of Song
emperor ,people renamed it "kangshan ".
Another kind of legend, in Zhou Wuwang's time, there was a person
named "fangfu". He entered the mountain with Lier together,
riding white donkey ,to make pills of immortality. They both became
immortal later, and only left an empty hut in the mountain. . People
called this empty mountain "Mount Lushan" .Also people
named the mountain after Fangfu's givename as "Fushan".
But king Wu and Lier were not at the same time , so this is equally
a fairy tale.
The third kind of legend is still gentleman Kuanglu's story. But
time is relatively late. Plots are a bit different too. It says
to be kuanglu's father, the east wild king. Once he with Wurui together,
assisted a ruler in governing a country Liu Bang calm down the world.
The east wild king unfortunatly died midway. Imperial court for
cite exploit of him, seal son of the east wild king the land named
wuyang (it is a part of Duyang county now). Kaunglu had six brothers.
They all interested in Taoism, and practiced austerities in the
mountain wuyang. Later people called the mountain where they stayed
" Mt. Lushan".