Markt Triefenstein (German: [ˈtʁiːfn̩ˌʃtaɪ̯n] ⓘ) is a market community in the Main-Spessart district in the Regierungsbezirk of Lower Franconia (Unterfranken) in Bavaria, Germany.

In addition, the vineyards profit from the protective bowl-shape of the hill (Kallmuth, 278 metres above sea level) and the heat-store of the river Main.

[5] Archeological evidence points to Iron Age fortifications on a rocky outcropping on the right bank of the Main, north of where the monastery stands today.

Later this was the site of early medieval fortifications and then of the Neuenburg castle (12th or 13th century), associated with the Ravensburg family [de] and which was likely destroyed in a fire.

The site was strategically important, controlling the Via Publica, dating back to Roman times, and its Main crossing at Lengfurt.

[6] According to tradition, Saint Burchard, Bishop of Würzburg (741-754) lived as a hermit (or, alternatively, concealed himself from enemies whilst travelling) in a natural cave at the foot of the hill on which Homburg castle is now located.

[8] A list of territories gained by Fulda Abbey between 755 and 885 (Fuldaer Tradition) names "Lengesfurt" given by a "Count Egino".

This is considered too vague to be the first written mention of the Triefenstein area, however, which is instead thought to be the Codex Eberhardi, issued by Louis the Pious in 839.

[11] In the 14th century, Gerhard von Schwarzburg [de], Bishop of Würzburg, sold Homburg castle to Johann I, Count of Wertheim.

[15][17] In 1803, with the Reichsdeputationshauptschluss and the dissolution of the ecclesial states, Kloster Triefenstein passed to the Counts of Löwenstein-Wertheim, who at times used it as a residence.

It is an established fact that the French army crossed the Main river here in May 1812 on a specially constructed wooden bridge.

In the course of administrative reform in Bavaria, the communities of Rettersheim, Homburg am Main, Lengfurt and Trennfeld came into being with the Gemeindeedikt ("Municipal Edict") of 1818.

In 1845, Queen Victoria crossed the Main at Lengfurt when she visited what was then Schloss Triefenstein (the former monastery) owned by the Löwenstein family.

[23][24] Some of the hill area formerly covered by vineyards has disappeared today: Between Lengfurt and Homburg there is a large HeidelbergCement cement works and quarry, first established in the late 1890s.

The community's arms might be described thus: A fess wavy argent, in chief azure a trident erect Or between two roses of the first barbed and seeded of the third, in base gules two keys in saltire, that bendwise of the third surmounting the other of the first.

The tinctures argent and gules (silver and red) are those once borne by the Prince-Bishopric of Würzburg, which maintained an Amt in Homburg.

[9] A railway track that followed the right bank of the Main, connecting Lohr and Wertheim [de], and that served a station at Trennfeld until 1975/76 has been demolished.