The Sporkenburg is a late medieval castle ruin about one kilometre south of Eitelborn. Located in the middle of the forest, the Sporkenburg is not easy to find. The easiest option is to follow the signs along the castle path (Burgweg) into the woods from the eastern exit of the village of Eitelborn aus (Erlenweg, near the cemetery). Pass through the barrier and take the right hand path from the crosstracks which leads gently downhill. Alternatively take the ascent from the L 329 from where the castle can be seen above the valley. The ruins are not managed and are freely accessible at any time.
The tower castle (Turmburg) is located on a roughly rectangular hill spur above the stream of Emsbach. The spur drops steeply away to the west, south and east. To the north the castle is protected by a length of ditch (Halsgraben). The outermost defences and the ward between the two curtain walls, the Zwinger, have almost completely disappeared.
The inner ward (Kernburg) is 35 metres long by 18 metres wide. It does not have a bergfried. On the north side the castle has a five-storey, slightly angled shield wall, reinforced with bartizans, that has a height of almost 20 metres. In the western section of the shield wall is the entrance to the inner ward. On the south side of the heavily built-up inner ward is the Palas with its Great Hall, whose outside walls have survived. The eastern part of the inner ward has been completely removed.
The Lower Engersgau was probably enfeoffed to the lords of the Electorate of Trier under Archbishop Poppo (1016–1047). From this estate, Archbishop Engelbert (1079–1101) gifted the village of Dezerhaid to the Benedictine Abbey of St. Matthew. In the late 13th century the settlement is recorded as a fief in the possession of Emmerich of Andernach and Henry of Lahnstein. They began work on constructing a castle. The castle was destroyed, however, by Count Otto of Nassau, the advocate (Vogt) of Kurtrier. Whereupon Henry of Lahnstein transferred his rights to Dezerhaid to Henry II of Helfenstein.
Henry II of Helfenstein had the Sporkenburg rebuilt, probably not on the old site, in the year 1310. He assigned it to the Archbishop of Trier Baldwin (1307–1354) as a fief. The castle developed into the centre of the lordship of Helfenstein-Sporkenburg.
In 1515 John of Helfenstein sold the castle to John and Quyrin of Nassau (not to be confused with the counts of Nassau). In the deed the castle was described as 'almost ruined'. In 1604 the castle went from the lords of Nassau to the von Metternich family. It was destroyed in 1635 by the French during the Thirty Years' War.
State chancellor Prince of Metternich sold the ruins in 1811. Its ownership transferred in 1900 to Prussia and in 1948 to Rhineland-Palatinate. In 1967 the State Office for Cultural Heritage began a gradual restoration of the remaining remnants of the walls.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.