| Native Name: | German: Grafschaft Lupfen |
| Conventional Long Name: | County of Lupfen |
| Common Name: | Lupfen |
| Symbol Type Article: | Lupfen (State)#Coat of arms |
| Coa Size: | 120px |
| Image Map Caption: | The Count of Lupfen's feudal possessions in the 15th century |
| Status: | Electorate |
| Empire: | Holy Roman Empire |
| Status Text: | State of the Holy Roman Empire |
| Era: | Middle Ages |
| Government Type: | Feudal monarchy |
| Year Start: | 1065 |
| Year End: | 1582 |
| P1: | County of Bonndorf |
| P2: | Landgraviate of Stühlingen |
| P3: | Lordship of Rappoltstein-Groß-Rappoltstein |
| S1: | Lordship of Pappenheim |
| Flag S1: | CoA Marschall von Pappenheim.svg |
| S2: | Lordship of Mörsberg |
| Capital: | Hohenlupfen (1065–1420) Stühlingen (1420–1582) |
| Common Languages: | German |
| Religion: | Roman Catholic |
| Title Leader: | Count |
| Leader1: | Count Heinrich IV (last) |
| Year Leader1: | 1562–1582 |
| Today: | Germany France |
| Demonym: | Lupfener Lupfensche |
The County of Lupfen (German: Grafschaft Lupfen) or the Landgraviate of Lupfen-Stühlingen (German: Landgrafschaft Lupfen-Stühlingen),[1] sometimes referred to as "Stühlingen" was a territory based in Hohenlupfen Castle in Talheim, where the rulers of House of Lupfen resided, which is first mentioned in 1065.[2] Its possessions included territories in Alsace and Baden-Württemberg. It was closely associated to Stühlingen, Germany. It was not a state in the modern sense, but one of the many feudal territories held by noble houses in the Middle Ages.
Hohenlupfen Castle, the residence of the Lupfens in Talheim was first documented in 1065.
In 1251, the counts of Lupfen inherited the Landgraviate of Stühlingen.[3] The current coat of arms of the town of Stühlingen is derived from this. The year prior, the County of Bonndorf was also inherited by them. The large territorial acquisitions allowed the counts to call themselves Landgraves.[4]
The Lupfens inherited Groß-Rappoltstein and Hohenack in 1398 through marriage with the former wife of the last count.[5]
In 1420, The Hohenlupfen castle in Talheim was abandoned for Stühlingen/Hohenlupfen Castle, in Stühlingen.
In 1582, the last count of Lupfen, Heinrich IV died at 39 years old with no male descendants.[6] Because of this, the House of Lupfen went extinct and the lands were divided between the nephew of his through his sister, belonging to the house of Mörsberg, and the Marshals of Pappenheim.[7]