The Russian Imperial Guard, officially known as the Leib Guard (Russian: Лейб-гвардия leyb-gvardiya, from German Leib "Body"; cf. Life Guards / Bodyguard) were military units serving as personal guards of the Emperor of Russia. Peter the Great founded the first such units following the Prussian practice in the 1690s, to replace the politically motivated Streltsy. The Imperial Guard subsequently increased in size and diversity to become an elite corps of all branches within the Imperial Army rather than Household troops in direct attendance on the Tsar. Numerous links were however maintained with the Imperial family and the bulk of the regiments of the Imperial Guard were stationed in and around Saint Petersburg in peacetime.
The final composition of the Russian Imperial Guard at the beginning of 1914 was:
Guards Corps St. Petersburg District. Headquarters, St. Petersburg, Millionaya. (Guards units not part of the Guards Corps were the Guards Replacement Cavalry Regiment and Guards Field Gendarme Squadron.)
1st Guards Infantry Division. Headquarters, St. Petersburg, Fontanka
1st Brigade: Life-Guards Preobrazhensky Regiment, Life-Guards Semyonovsky Regiment
2nd Brigade: Life-Guards Izmailovsky Regiment, Life-Guards Egersky Regiment
1st Life-Guards Artillery Brigade
2nd Guards Infantry Division. Headquarters, St. Petersburg, Fontanka
1st Brigade: Life-Guards Moskovsky Regiment, Life-Guards Grenadier Regiment
2nd Brigade: Life-Guards Pavlovsky Regiment, Life-Guards Finliandsky Regiment
2nd Life-Guards Artillery Brigade
1st Guards Cavalry Division. Headquarters, St. Petersburg, Fontanka
1st Brigade: Her Sovereign Majesty Empress Maria Theodorovna's Chevalier Guard Regiment, Life-Guards Horse Regiment
2nd Brigade: His Majesty's Life-Guards Cuirassier Regiment, Her Majesty Empress Maria Theodorovna's Life-Guards Cuirassier Regiment
3rd Brigade: His Majesty's Life-Guards Cossack Regiment, His Imperial Highness the Sovereign Heir and Tsesarevich's Life-Guards Ataman Regiment, Life-Guards Combined Cossack Regiment, 1st His Majesty's Ural Sotnia, 2nd Orenburg Sotnia, 3rd Combined Sotnia, 4th Amur Sotnia
1st Division of Life-Guards Horse-Artillery Brigade
2nd Guards Cavalry Division. Headquarters, St. Petersburg, Fontanka
1st Brigade: Life-Guards Horse-Grenadier Regiment, Her Majesty Empress Alexandra Theodorovna's Life-Guards Lancer Regiment
2nd Brigade: Life-Guards Dragoon Regiment, His Majesty's Life-Guards Hussar Regiment,
2nd Division of Life-Guards Horse-Artillery Brigade
Guards Rifle Brigade. Headquarters, St. Petersburg, Fontanka
Life-Guards 1st His Majesty's Rifle Regiment
Life-Guards 2nd Tsarskoe-Selo Rifle Regiment
Life-Guards 3rd His Majesty's Rifle Regiment
Life-Guards 4th The Imperial Family's Rifle Regiment
Guards Rifle Artillery Battalion
Life-Guards Horse Artillery
Guards Howitzer Artillery Battalion
Life-Guards Sapper Battalion
Guards Aviation Company
Plus the following were part of the 23rd Army Corps, Warsaw Military District. Headquarters, Warsaw, Poland.
3rd Guards Infantry Division. Headquarters, Warsaw.
1st Brigade: Life-Guards Lithuania Regiment, Emperor of Austria's Life-Guards Kexholm Regiment
2nd Brigade: King Frederick-William III's Life-Guards St.-Petersburg Regiment, Life-Guards Volinski Regiment
3rd Life-Guards Artillery Brigade
2nd Infantry Division
Separate Guards Cavalry Brigade: His Majesty's Lancers, Grodno Hussars
3rd Battery of Life-Guards Horse Artillery
23rd Howitzer Artillery Battalion
9th Sapper Battalion
Every soldier and officer of the Guard had the style of the Leib Guard (Лейб-гвардии ...), for example: Colonel of the Leib Guard (Лейб-гвардии полковник). It is a misconception that the monarch himself functioned as the commander of the Leib Guard regiments, so only he and some members of the imperial family could hold a title of Colonel (Polkovnik) of the Guards, but in fact there were many guards officers in the rank of colonel.
Commissioned officers enjoyed a two-grade elevation in the Table of Ranks over regular army officers; this later changed to a one-grade elevation -- first for the New Guards then for the rest of the Leib Guard. Following the abolition of the rank of Major in 1884, most grades below VII shifted one position upwards, effectively returning to those of the Old Guards.