The church of St André de la Pommeraye (St Andrews of the Apple Orchard) is one of the smallest in Guernsey and originally consisted of a nave and chancel only. There is little doubt that the walls of these date from the 12th century but, French slate now replaces the early wooden roof and the stone vaulting was added in the early part of the 13th century.
The north aisle and tower are 15th century additions, which more than doubled the size of the original building, but of the medieval fittings nothing now survives with the exception of the bowl of a piscine which is of an unusual design the only one of its kind in the Channel Islands.
The Priaulx Library holds microfilm copies of the registers of baptisms, marriages and burials from 1574 through the 1990's, although those for the periods 1599-1603 and 1616-1619 have not survived.
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.