original_query: What was the structure of the brigade before conversion?
query: What was the structure of the 11th Infantry Brigade before its conversion to a brigade group?
answer: Before conversion to a brigade group in 1958, the 11th Infantry Brigade's structure included a Brigade Headquarters at Kingsley Barracks, Minden; 7th Royal Tank Regiment; 4th Royal Tank Regiment (from April 1959); 1st Battalion, North Staffordshire Regiment; 1st Battalion, The South Wales Borderers (from June 1959); 1st Battalion, The Highland Light Infantry; 1st Battalion, Middlesex Regiment (from November 1958); 1st Battalion, The Royal Lincolnshire Regiment (from June 1958); 19th Field Regiment, Royal Artillery; and 25 Field Squadron, Royal Engineers.