The date of the present St. Brelade's is unknown, but it is mentioned in deeds of patronage. In AD 1035, Robert of Normandy confirmed the patronage of the church to the monastery of Montivilliers, which shows that the church was here before 1035. The chancel is the oldest part of the building. The original building extended some six feet into the nave. It was then only a small monastic chapel. Early in the 12th century St. Brelade's became a parish church and in the 14th–15th centuries, the roof was raised some two-and-a-half feet higher to a Gothic pitch. The roof of the Fishermen's Chapel was raised at the same time.
The church of the 12th century was cruciform in structure, consisting of a chancel, a nave (built in two periods) and two transepts—the latter forming the two arms. At a later date, perhaps a century later, the chancel aisle was built, and after that the nave aisle. The date of the tower is uncertain. It is, however, older than the chancel.
The font disappeared during the Reformation and was found on the slopes near the church, hidden in bracken and gorse, in 1840 and restored to the church. An ornate wooden cover for the font was provided in memory of H. G. Shepard, long-time warden at the church. A processional cross dating from the 13th century is to be seen in the Lady Chapel; this was found buried in the church. The stained glass is the work of Henry Thomas Bosdet and replaced plain glass windows dating from the Reformation iconoclasm.
Before the restoration of Balleine in the 1890s, the whole of the interior stone work was covered in plaster which was whitewashed; the plaster was removed to show the granite, and the whole re-pointed with cement. Balleine's restoration also saw Art Nouveau woodwork in the choir stalls and pulpit and modern paving in the chancel; it is made of five different types of Jersey granite and represents the waves breaking on the sea-shore.
The legend has the site of the church being placed in the centre of St Brelade's Bay and moved by night by fairy folk from their sacred site to where it now stands, until the workmen got the message and left it where it now stands.References:
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms. Kastelhoma was expanded and enhanced several times.
In the end of 16th century castle was owned by the previous queen Catherine Jagellon (Stenbock), an enemy of the King of Sweden Eric XIV. King Eric conquered Kastelholma in 1599 and all defending officers were taken to Turku and executed. The castle was damaged under the siege and it took 30 years to renovate it.
In 1634 Åland was joined with the County of Åbo and Björneborg and Kastelholma lost its administrative status.