What does 㫬 mean in 唯有中大夫楊元愼、給事中大夫王㫬是中原士族? I recently came across an article where a sinologist complained of not being able to understand the use of the character 㫬 in the following sentence:

彪亦是南人。唯有中大夫楊元愼、給事中大夫王㫬是中原士族。

The article describing the sinologist's troubles identifying the reason for this character being in the sentence follows:
http://languagelog.ldc.upenn.edu/nll/?p=31859
Ever curious, I wondered if somebody here may be able to answer as to why this character is used in the sentence?  And which of the alternative pronunciations: xuan, shun, xun, or something else would be used to say it?
Here &quot;㫬&quot; is the given name, and &quot;王&quot; is the family name.
So  &quot;彪亦是南人。唯有中大夫楊元愼、給事中大夫王㫬是中原士族。&quot;,
中大夫楊元愼  means, someone named  楊元愼 has a job position named &quot;中大夫&quot;
給事中大夫王㫬 means, someone named 王㫬  has a job position named &quot;給事中大夫&quot;
㫬 's pronunciation is:   [xù]  , the same with 续。
For further pronunciation questions, come to http://baidu.com and search this Chinese word. Frankly speaking, I don't know this word either. This word is used only as people's name.  &gt;_&lt;
And, when you are reading 文言文， the context is very important. The job position &quot;给事中大夫&quot; is a guess by me.