Situated in the Prahova Valley, the Sinaia Monastery gave its name to the nearby town of Sinaia. Prince (Spătarul) Mihail Cantacuzino founded the monastery upon his return from a pilgrimage to Mount Sinai. The first buildings were completed between 1690 and 1695. It was designed to serve as a monastery as well as a fortified stronghold on the route from Brasov to Bucharest.
In the midst of the Russo–Turkish War, 1735–1739, before deserting the monastery, monks hid the valuables by burying them inside a bell. During a battle, the Turks defeated troops stationed within the walls of the monastery. The Ottomans burned the area and broke through the wall in two places.
Until 1850, Sinaia consisted of little more than the monastery and a group of huts. In 1864, however, the monastic estate was assigned to the Board of Civil Hospitals (Eforia Spitalelor Civile), which opened a hospital and several baths, and helped develop mineral springsin Sinaia.
The monastery consists of two courtyards surrounded by low buildings. In the centre of each courtyard there is a small church built in the Byzantine style. One of them—'Biserica Veche' (The Old Church)—dates from 1695, while the more recent 'Biserica Mare' (The Great Church) was built in 1846.
The monks possess a library that is a repository for valuable jewels belonging to the Cantacuzino family, as well as the earliest Romanian translation of the Bible, dated 1668.
In 1895 the museum of the monastery was opened, the first exhibition of religious objects in Romania. It holds collections of icons and crosses from the 17th century, the very first Bible in Romanian (Bucharest, 1688), and many other precious objects.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.