Creditors of Signa Prime Selection, the most prestigious segment of Austria’s insolvent Signa Group and owner of Berlin’s luxury department store, KaDeWe, have agreed to sell the segment’s assets, the bankruptcy administrator said on Monday. Sigma Prime is seen as the crown jewel of flamboyant entrepreneur René Benko’s bankrupt real estate empire, which has been brought down by rising interest rates, construction costs and energy prices. Its assets also include Hamburg’s unfinished Elbe Tower, the Galeria Karstadt Kaufhof chain and the building housing Austria’s Constitutional Court. Signa Pri…