my family is from naples italy and we are decendents of the royal
family of naples who do i contact about the title i hold,and how do i
go about formally recieving title

Try this site. GENEALOGIE DELLE DINASTIE ITALIANE
... una serie di discussioni sulla rappresentazione delle famiglie
nobili italiane apparse ...
Battelli, on the way in which information about Italian noble families ... 
www.sardimpex.com/ - 16k - 16. März 2005 

It has an email address at the bottom of the page.
I thought US citizens (if you are one) could not use a title of
nobility, but discovered that the US just may not create such and that
naturalized citizens must reject such.  SO good luck.

There were several royal families in Naples:
http://en.wikipedia.org/wiki/Kingdom_of_Naples

From which one of these dynasties are you a descendant? I suppose you
would have to contact the current head of the family in question.

In case you are referring to the House of Bourbon:

http://www.realcasadiborbone.it/index/index.htm

http://www.realcasadiborbone.it/uk/news/index.htm (in English)

"Map of the Site":
http://www.realcasadiborbone.it/uk/mappa/index.htm