12 months ago 12 months ago The life span of the Neapolitano mastino is relatively short – they live side by side with the owner for 9-11 years. (6/14) by Heather Vance 12 months ago12 months ago Facebook Twitter Credit Heather Vance 12 months ago 0 Previous 6/14 Next View full list Like it? Share with your friends! Facebook Twitter 0 Comments Cancel replyYour email address will not be published. Required fields are marked * Save my name, email, and website in this browser for the next time I comment.