However, not all burials took place inside the church and some graves can be seen outside the church walls. The most notable of the burials outside the church is Frederik IX and his wife Queen Ingrid of Sweden.
Advertisement
http://virtualglobetrotting.com/map/small-cemetery-behind-roskilde-cathedral-1/
Here are three more graves located near the visitor entrance of the chuch:
http://virtualglobetrotting.com/map/unknown-graves-beside-roskilde-cathedral/
Located next to the main entrance of the cathedral under the left tower, lies this blue/greenish grave of an unknown person. The grave stone is clearly visible, but is unreadable. Not much is known about this grave and I could find nothing on the internet.