I think "Spilaiotis" is not his last name, but means "Cave-dweller" as he is also known as. This means
that his parents do not have this as a last name. If this is the case, we need to remove "Spilaiotis" from his parents' name.
:If Spilaiotis means Cave-dweller, then it should definitely be removed - from his parents' names, the intro and the title.
:The references for Spilaiotis are [http://orthodoxphotos.com/Athonite_Hermits/index.shtml here (ctrl-f 'Joseph'), which uses Spilaiotis and Spelaiotis] and [http://www.google.com.au/search?q=spilaiotis+OR+spelaiotis&start=0&ie=utf-8&oe=utf-8&client=firefox-a&rls=org.mozilla:en-US:official here, where there is one use as a surname (Elias Spilaiotis) and one as a title (O Geron Arsenios o Spilaiotis)] .