Chinese: from the name of the state of Tan during
the Zhou dynasty. After Wu Wang established the Zhou dynasty in 1122
bc, he enfeoffed the state of Tan to a descendant of the
model emperor Yu (2205–2198 bc), with the status of
Viscount. Descendants adopted the name of the state Tan as their
surname.
Chinese: said to be from the name of a
certain King Tan of the state of Song, a 36th-generation descendant of
its founder (see Song).
Chinese: there are two groups of
bearers of the character for this surname: one pronounced Tan, and the
other Qin (see Qin), although both are represented with the
same character.
Korean: there are three Chinese characters
for this surname; two of them are used by clans that now have only one
surviving family each, according to a recent census. Some records
indicate that there are 10 clans that use the third character for
their surname, but only two can be documented: the Kangüm clan and
the Yönan clan. Neither of these clans is very large.