The House of Ahlefeldt is an ancient German noble family with branches in Germany and across Scandinavia, most notably in Denmark, and subsequently in Sweden and Norway. It has identical coat of arms
Coat of arms of Barons Ahlefeldt von Dehn, the German family branch, 1913
Eriksholm Castle is a manor house located at the foot of the Isefjord inlet, 6 km south-east of Holbæk, in east Denmark. The history of the estate dates back to 1400 but today's house was built in 178