Complex sentence: MacDonough hauled in further on his kedge anchors to bring his broadside to bear on HMS "Linnet", which also could only surrender, after being battered almost into sinking.
Split into simpler sentences: MacDonough hauled in further on his kedge anchors to bring his broadside to bear on HMS "Linnet". The "Linnet" also could only surrender, after being battered almost into sinking.