If you have information about this name, share it in the comments area below!
Books about Esrum:
Esrum Klosters Brevbog by BENT CHRISTENSEN ET AL. (2005)
Wiki information Esrum:
Esrum Abbey, also Esrom Abbey was the second Cistercian monastery founded in Denmark, located near Hillerød in Region Hovedstaden, on the island of Zealand, on the north side of the Esrum Sø near Esbønderup and Græsted.
Esrum is a small town in the northern part of the island of Zealand (Sjælland). The town is widely known for its abbey, now a museum and restaurant, dating back to 1151.