Germanic Last Names

"4. Geographical. These names derive from where a person lived or came from. They may stem from the name of a city or village or the location of someone’s home, such as Kissinger from Kissingen and Schwarzenegger from Schwarzenegg. Someone named Berger may have who lived on a mountain."

Source:

http://blogs.ancestry.com/cm/2014/10/09/there-are-four-common-types-of-german-surnames-which-one-is-yours/?utm_source=outbrain&utm_term=829246&o_xid=63122&o_lid=63122&o_sch=Content+Marketing

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So perhaps our last name - Hollinger - derived from Holligen.

A search for Holligen results in Holligen Castle:

https://en.wikipedia.org/wiki/Holligen_Castle 


Next time I go to Switzerland I will visit the Castle which is now a museum and check it out.