Bel Air mansion
... that at a 1966 concert, Frank Sinatra joked about the evenings he and others spent carousing at Dean Martin's Bel Air mansion?
... that at <a href="./Sinatra_at_the_Sands" id="mwBd4" rel="mw:WikiLink" title="Sinatra at the Sands">a 1966 concert</a>, Frank Sinatra joked about the evenings he and others spent carousing at <a href="./Dean_Martin" id="mwBd8" rel="mw:WikiLink" title="Dean Martin">Dean Martin</a>'s <b id="mwBeA"><a href="./363_Copa_De_Oro_Road" id="mwBeE" rel="mw:WikiLink" title="363 Copa De Oro Road">Bel Air mansion</a></b>?