| Formed: | 1st July 1813 IV. Bataillon: 11th August 1893 |
| Cadre Formations: | I. from 1.Reserve-Bataillon des Leib-Infanterie Regiments
(from the Leib-Grenadier-Bataillon).
II. from 2.Reserve-Bataillon des Leib-Infanterie Regiments (from the Ostpreußisches Grenadier-Bataillon. Füsiler-Bataillon from 3.Musketier-Bataillon des 1.Westpreußisches Infanterie-Regiments. IV. Formed by the regiment. Transferred on 1st April 1897 to form I.R.Nr.150. |
| Peacetime Assignment: | III. Armee-Korps
5.Infanterie-Division 10.Infanterie-Brigade (with Inf.-Regt. von Alvensleben (6.Brandenb.) Nr.52. |
| Mobilisation Assignment: | As above. (Jäger-Bataillon Nr.3 in brigade). |
| Commander - 2 Aug.1914: | Oberst Ernst von Reuter. Died 16th March 1941 as Generalleutnant a.D. |
| Assignment 24 May 1918: | 5.Infanterie-Division
10.Infanterie-Brigade (with Gren.-Regt. 8, I.R. 52 & M.G.-Scharfschützen-Abt.13). |
| Engagements: | 1914: Advance
into Belgium and France, Mons, Battle of the Marne, Aisne, Soissons.
1915: Arras, Champagne. 1916: Verdun, Douamont, Somme, Verdun. 1917: Aisne-Champagne. From 1st July 1917 on the Eastern front – Tarnopol. From 24th September on the Italian Front. 1918: Beginning of year back to the West. "Kaiserschlacht", Soissons, Somme, Chemin des Dames, Aisne and Vesle. |
| War Losses: | 138 Officers, officer-cadets and medical officers and 268 NCOs and 3125 men. |
| Uniform: | Helmet with guard eagle without star. Yellow fittings and flat curb chain. Black parade plume, red for musicians.German and Prussian cockades. Dark blue tunic with red Brandenburg cuffs. Cuff patches piped white. Red shoulder straps with yellow "12". Yellow buttons. |
| Trivia: | The later Luftwaffe Generaloberst Hans-Jürgen Stumpff
was the adjutant of I./G.R.12 in 1914.
The later General der Infanterie Wilhelm Burgdorf was both a battalion and regimental adjutant in G.R.12. Last head of the Army personnel office in WW2 and involved in the enforced suicide of GFM Rommel. The later General der Infanterie Theodor Busse was a platoon commander in G.R.12. The novelist Walter Blohm was a Major der Reserve, company and battalion commander and wrote the book "the advance from Mons". |
