In this country on the Tuesday after Pentecost, a jumpy dance procession ends above the crypt of Saint Willibrord. A dish of (-5[1])smoked pork collar and broad beans from this country is known partly by the possibly anti-Semitic word Judd (“yood”). A standard morning greeting in this country is the word “Moien.” (-5[1])Marc (-5[1])Serres (-5[1])(“SEH-rez”) runs (-5[1])a Space Agency in this country that is positioning it as a hub for asteroid mining companies. About 15% of people in this non-Iberian country speak Portuguese, (10[1])including many residents of Echternach (10[2])(“ESH-tur-nahkh”). A free travel agreement was first signed in 1985 in a town in this country, whose flag has the same layout as, (10[1]-5[1])but uses a lighter shade of (10[1])blue (10[1])than, (10[1]-5[1])the Netherlands’. (10[3]-5[1])Schengen (10[3])is in this (10[1])home of a ruined fort (10[1])once called the (10[1])“Gibraltar (10[1])of the North.” For 10 points, name this Grand Duchy between France, Germany, (10[1])and Belgium. (10[1])■END■ (10[5])