The church is the chapel (in Castro) of Carisbrooke Castle.

In 1904 the chapel of St Nicholas in the castle was reopened and re-consecrated, having been rebuilt as a national memorial of King Charles I.

The chapel is home to the Isle of Wight County War Memorial, which was designed by local architect, Percy Stone (1856–1934).

The church has a two manual organ dating from 1908 by Bevington.

Media related to Carisbrooke Castle chapel at Wikimedia Commons