| Unit Name: | 1st Life Grenadier Regiment |
| Native Name: | Första livgrenadjärregementet |
| Dates: | 1632–1927 |
| Country: |  Sweden |
| Allegiance: | Swedish Armed Forces |
| Branch: | Swedish Army |
| Type: | Infantry regiment |
| Size: | Regiment |
| Command Structure: | 2nd Military District (1833–1901) II Army Division (1902–1927) |
| Garrison: | Linköping |
| Colors: | White |
| Colours Label: | --> |
| March: | "Ryska grenadjärregementets 'Konungen av Preussen' marsch" (Schubert)[1] (1845 - 1870, 1893 - 1927) "Wiener Rekruten-Marsch" (1870 - 1883) "Napoleonmarsch" (1883 - 1893) |
| Battle Honours: | Lützen (1632), Leipzig (1642), Helsingborg (1710), Gadebusch (1712), Valkeala (1790) |
The 1st Life Grenadier Regiment (Swedish: Första livgrenadjärregementet), designation I 4, was a Swedish Army infantry regiment that traced its origins back to the 16th century. It was merged into a new regiment in 1927. The regiment's soldiers were recruited from the province of Östergötland.
The regiment has its origins in fänikor (companies) raised in Östergötland in the 16th century. These units later formed Östergötland Infantry Regiment and Östergötland Cavalry Regiment which merged in 1791 and formed Life Grenadier Regiment. This regiment was split in 1816 creating 1st Life Grenadier Regiment and 2nd Life Grenadier Regiment.
The regiment was allotted in 1685. The regiment was given the designation I 4 (4th Infantry Regiment) in a general order in 1816. 1st Life Grenadier Regiment was then merged with 2nd Life Grenadier Regiment in 1928 to reform the old Life Grenadier Regiment.
Executive officers (Sekundchef) and regimental commander active at the regiment in the years 1816–1927. Sekundchef was a title used until 31 December 1974 at regiments that were part of the King's Life and Household Troops (Kungl. Maj:ts Liv- och Hustrupper). In the years 1816–1818, the Crown Prince was the regimental commander. In the years 1818–1927, His Majesty the King was the regimental commander.[2]
| Name | Translation | From | To | ||
|---|---|---|---|---|---|
| Kungl Första livgrenadjärregementet | Royal 1st Life Grenadier Regiment | 1816-10-01 | – | 1927-12-31 | |
| Designation | From | To | |||
| № 4 | 1816-10-01 | – | 1914-09-30 | ||
| I 4 | 1914-10-01 | – | 1927-12-31 | ||
| Location | From | To | |||
| Malmen | 1816-10-01 | – | 1922-10-?? | ||
| Linköping Garrison | 1922-10-?? | – | 1927-12-31 |