The Castle Royal Hotel was built in 1909 and was known as the Palace Hotel. It was started by Mr. Schwentafsky with only two storeys, and in 1928 the other two storeys and many other improvements such as the roof garden were added. World of Sentrim Hotel opened its door on 1st March 2005 as Castle Royal Hotel - which had been closed for 14 years. © Copy Right 2005. The Sentrim Group of Hotels. All Rights Reserved.