 The operation began on 12 October , when Moltke and the four König @-@ class ships covered the landing of ground troops by suppressing the shore batteries covering <unk> Bay . Markgraf fired on the battery located on Cape <unk> . After the successful amphibious assault , III Squadron steamed to <unk> <unk> , although Markgraf remained behind for several days . On the 17th , Markgraf left <unk> Bay to rejoin her squadron in the Gulf of Riga , but early on the following morning she ran aground at the entrance to <unk> . The ship was quickly freed , and she reached the III Squadron anchorage north of <unk> Bank on the 19th . The next day , Markgraf steamed to Moon Sound , and on the 25th participated in the bombardment of Russian positions on the island of <unk> . The ship returned to <unk> on 27 October , and two days later was detached from Operation Albion to return to the North Sea . 
