The Château de Greifenstein is a ruined castle in the commune of Saverne. The Grand-Greifenstein was, without doubt, founded in the first half of the 12th century by the knight Meribodo de Greifenstein who had close links to the Ochenstein family. The Petit-Greifenstein dates from the end of the 13th century or start of the 14th century.
Visitors can distinguish two castles separated by a large ditch. The older part has the largest keep in Alsace with 13 metres a side. A renovated tower stands between the two keeps at the centre of the site. It was probably part of Grand-Greifenstein. From the terrace there is an unimpeded view of Saverne, the Château du Haut-Barr, the Château du Grand-Geroldseck, the valley of the Zorn and the Saint-Vit chapel.
To reach the castle, leave Saverne on the D132 road towards Lutzelbourg and turn right towards the Ramsthal lake. Then follow the Club Vosgien path signposted by a blue rectangle.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.