The first restoration works have been carried out in June 2010.
In 1820 restoration works had been still going on since the incident.
Although restoration works has started, due to the lack of finances they are proceeding very slowly.
The restoration works have continued sporadically into the beginning of the 21st century under local leadership.
The last restoration works were performed in the years 1982-1989.
In 1828-1830 extensive restoration works of the palace and grounds took place.
Further restoration works were carried out in 1948-1950, 1977 and 1985.
As of December 2006, large restoration works are nearly to be finished at the palace.
Between autumn 2006 and February 2007 restoration works were carried out.
Important restoration works were conducted in the 1960s and 1970s.
The restoration has wrought few changes to the building itself.
They then restored its key features and constructed new office buildings within the grounds to help finance the restoration works.
Most recently restoration works at the castle took place in 1982 and 1983.
One reason for this view is that restoration of ecosystems does not always work.
The church was closed for restoration works between September 2005 and March 2007.
An external restoration in the summer of 2009 worked toward returning the building to its former appearance.
The restoration works between 1964 and 1967 brought back the cathedral design to its original medieval aspect.
Then they were removed and underwent heavy restoration works from 1963 to 1966.
The bridge underwent major restoration works towards the end of 2003, which were completed by the start of 2006.
After restoration work the church was reopened in 1875.