The Embed Wikimedia plugin adds support for embedding photos from Wikimedia projects such as Wikipedia, Wikimedia Commons, and Wikidata.
It requires no configuration, and to use you just add a URL of any of the above sites on its own line in a WordPress post or page.
Development is on Github at samwilson/embed-wikimedia; please report all issues there.
Questo plugin è disponibile per il download da usare sulla tua installazione WordPress ospitata personalmente.