King of Israel in the Bible, son of 大卫 (David), known for his wisdom and for building the first Temple in Jerusalem. In the best-known story he finds a baby's true mother by offering to cut the child in two.
This is the Catholic Sino-Christian rendering. Protestant Bibles and most secular writing use 所罗门. If you see 撒罗满 you're almost certainly reading a Catholic source.
The famous biblical story (1 Kings 3) in which Solomon proposes cutting a baby in half to identify its true mother - a touchstone for the wisdom-king motif in Western and Catholic-Chinese tradition.