sentences:  "Jagdschloss Gelbensande" is a hunting lodge or manor that was erected between 1880 and 1885 as a summer residence for Grand Duke Friedrich Franz III of Mecklenburg-Schwerin.After 1887, it was used as a base for hunting in the surrounding forest, the Rostock Heath.Because of the Grand Duke's marriage to one of the Russian Tsar's granddaughters, the Mecklenburg-Russian relationships can still be seen inside the castle today.