when was it launched?
12 September 1916
HMS Ramillies (07)
She was christened "Ramillies" after the 1706 Battle of Ramillies and was launched on 12 September 1916, but she struck the slipway, badly damaging the bottom of her hull and her rudders. 
what is hms ramillies (07)? It is one of the five super-dreadnought battleships who was it built for? Royal Navy
wiki:21454297
HMS Ramillies (07) [SEP] Construction and the First World War
"Ramillies", the fourth ship of her name to serve in the Royal Navy, was laid down at the William Beardmore and Company shipyard in Dalmuir, Scotland, on 12 November 1913. During construction, the decision was made to fit the vessel with anti-torpedo bulges, since her hull was the least complete of the members of her class. She was christened "Ramillies" after the 1706 Battle of Ramillies and was launched on 12 September 1916, but she struck the slipway, badly damaging the bottom of her hull and her rudders. Since the dry docks in Dalmuir were not long enough to accommodate "Ramillies", she would have to be towed to the Cammell Laird shipyard in Liverpool.