Fortress & castleRhodopes & Southern Bulgaria

Asen's Fortress, the Medieval Stronghold above Asenovgrad in the Rhodopes

Asen's Fortress is a medieval stronghold on a high rocky ridge above the Asenitsa River, 2 to 3 km south of Asenovgrad in the Rhodope Mountains. Its best-preserved treasure is the Church of the Holy Mother of God, a 12th–13th-century building with 14th-century murals that is still in use. Ruined walls, a feudal castle and water cisterns complete one of southern Bulgaria's most atmospheric fortress visits.

In 1205 a Latin duke took refuge here with just 40 knights and held out for eleven months until help arrived. The town below still carries the fortress's name.

WhereOn a rocky ridge 2 to 3 km south of Asenovgrad, in the Rhodope Mountains, Plovdiv Province

TypeMedieval fortress with a surviving 12th–13th-century church

Best forCastle and history lovers, photographers and travellers combining Plovdiv, Bachkovo and the Rhodopes

Getting thereAbout 2 to 3 km south of Asenovgrad; approach by the ridge on the left bank of the Asenitsa River

The history of Asen's Fortress

The earliest archaeological finds at this rocky ridge date from the time of the Thracians, and the area was still inhabited in Roman and Early Byzantine times. The Bulgarian Wikipedia adds that Byzantium rebuilt the fortress in the ninth century to guard the gate of the Aegean pass and to secure the Byzantine frontier in this area. The stronghold gained real importance in the Middle Ages: it was first mentioned as Petrich in the statute of the nearby Bachkovo Monastery in the eleventh century, and the same sources show that it had its own garrison and administration.

A dramatic episode took place in 1205. Renier of Trit, the Latin duke of Philippopolis, fled from that city, which was under pressure from Tsar Kaloyan of Bulgaria, and took refuge in the fortress, then known as Stanimaka. He was besieged there for eleven months with only forty knights before the army of the Latin emperor Henry of Flanders came to his relief. The episode shows how strategic this ridge was in the clash between Bulgarians and Latins.

The fortress was greatly renovated in 1231 under the Bulgarian tsar Ivan Asen II, who wanted a border fortification against Latin raids. An eight-line inscription carved into the rock bears witness to the work, and the fortress takes its name from the tsar. Excavations from this period have revealed fortified walls, the outer ones 2.9 metres thick and preserved to a height of 3 metres but originally 9 to 12 metres high, along with a feudal castle, about thirty rooms and three water reservoirs.

The crown of the complex is the Church of the Holy Mother of God, from the twelfth to thirteenth century. It is a two-storey, cross-domed building with a single nave, a wide narthex and a large rectangular tower, and it keeps murals from the fourteenth century. After the death of Ivan Asen II the fortress passed back and forth between Bulgarians and Byzantines for decades, and it was again in Bulgarian hands under Ivan Alexander in 1344.

It was later conquered and destroyed by the Ottomans. The fortress was left to decay, and only the church survived in its original appearance, used by the local Christians. Conservation and partial restoration of the church were completed in 1991, and it is now in regular use as a Bulgarian Orthodox church. The town of Asenovgrad, formerly called Stanimaka, took its modern name from the fortress, and its coat of arms shows the church.

Curious facts about Asen's Fortress

The town of Asenovgrad, formerly called Stanimaka, takes its present name from the fortress, and the Romanian Wikipedia notes that the church appears on the town's coat of arms.
In 1205 Renier of Trit held out in the fortress for eleven months with only forty knights.
An eight-line inscription carved in the rock records the renovation carried out in 1231 under Ivan Asen II.
The outer walls were originally 9 to 12 metres high and 2.9 metres thick; the excavated fortress also had about thirty rooms and three water reservoirs.
After the Ottoman conquest the fortress was left to decay, yet the church survived in its original appearance because local Christians kept using it.
The fortress is among the Hundred National Tourist Sites of Bulgaria, and visitors can collect a stamp there; a street in Sofia is named after it.

Tours near Asen's Fortress

Experiences in the area that you can book online with Viator:

Small group tour to Plovdiv, Asen's Fortress and Bachkovo Monastery

★ 4.8 (182 reviews) · 9 h

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Bachkovo Monastery & Asen's Fortress - day tour from Plovdiv

★ 5 (32 reviews) · 3 h

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Plovdiv, Asen's Fortress and Bachkovo Monastery small group tour with pickup

★ 5 (27 reviews) · 9 h

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Private Day Trip to Plovdiv and Asen's Fortress

★ 4.5 (13 reviews) · 9 h

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Visiting Asen's Fortress: what to expect

The fortress stands 2 to 3 km south of Asenovgrad on a high rocky ridge above the left bank of the Asenitsa River, at 279 metres above sea level; wear sturdy shoes for the uneven terrain.
The Church of the Holy Mother of God is the main sight; look for its two storeys, narthex, rectangular tower and the 14th-century murals.
Walk along the remains of the fortified walls, the feudal castle and the water cisterns, and look for the carved inscription of 1231.
The fortress is a national monument of culture, and the church is in regular use as an Orthodox church; check the current opening hours and visiting conditions before you go.
Bachkovo Monastery is about 5 km away and Arapovo Monastery about 10 km, so all three fit well into a single day trip from Plovdiv.

Opening hours, access and conditions can change. Check before you go.

Map: where Asen's Fortress is

Photos of Asen's Fortress

Asen's Fortress, Church of the Holy Mother of God of Petrich, view 1

Asen's Fortress, Church of the Holy Mother of God of Petrich, view 2

Asen's Fortress, Church of the Holy Mother of God of Petrich, view 3

Asen's Fortress, Church of the Holy Mother of God of Petrich, view 4

Questions

What is Asen's Fortress?

It is a medieval fortress in the Bulgarian Rhodope Mountains, south of Asenovgrad. It was renovated in 1231 under Tsar Ivan Asen II and keeps a 12th–13th-century church.

Where is Asen's Fortress and how far is it from Asenovgrad?

It stands on a high rocky ridge 2 to 3 km south of the town of Asenovgrad, on the left bank of the Asenitsa River in Plovdiv Province.

Why is it called Asen's Fortress?

It is named after the Bulgarian tsar Ivan Asen II, who ordered a major renovation in 1231. The nearby town of Asenovgrad took its name from the fortress.

What can you see at Asen's Fortress?

The best-preserved part is the Church of the Holy Mother of God with 14th-century murals. Remains of the walls, a feudal castle and three water reservoirs have also been excavated.

Is the church at Asen's Fortress still used?

Yes. After conservation and partial restoration finished in 1991, the church is in regular use as a Bulgarian Orthodox church.

What else is worth seeing near Asen's Fortress?

Bachkovo Monastery is about 5 km away, Arapovo Monastery about 10 km and Belintash about 17 km.