It signed the Treaty of St. Germain after World War One and was the victim of the Anschluss.
A prince from this country apparently engaged in murder-suicide with his lover, Mary Vetsera, during the Mayerling Affair. One former leader of this country became head of the occupied Netherlands during World War II. A duke from this country held Richard the Lionheart hostage on his return from the Third Crusade. Its fascist movement was led by Engelbert Dolfuss and Kurt von Schussnig. It signed the Treaty of St. Germain after World War One and was the victim of the Anschluss. For 10 points, name this Catholic, German-speaking country whose capital is Vienna.
A prince from this country apparently engaged in murder-suicide with his lover, Mary Vetsera, during the Mayerling Affair.
{Austria} [or {Osterreich}]