Answer: olafs

AnswerCrossword Clue
OLAFSSix kings of Norway
OLAFSSt. ... Church (Estonian landmark)
OLAFSSome kingly Norwegian names
OLAFSLemony Snicket's count and one of Snoopy's brothers
OLAFSTallinn's St. ... Church, once said to be the tallest building in Europe
OLAFSSeveral kings of Norway
OLAFSScandinavian kings
OLAFSKingly names in Oslo
OLAFSNorway's Crown Prince, and others.
OLAFSSt. ... Castle (landmark in Savonlinna, Finland)
OLAFSSix Norwegian kings
OLAFSSt. .. Castle (Finnish landmark)
OLAFSNorwegian kings who share a name with a character in "Frozen"
OLAFSFive kings of Norway
OLAFSSome Scandinavian rulers
OLAFSNorwegian kings
OLAFSKings of Norway
OLAFSFive Norwegian kings
OLAFSSeveral Norwegian kings
OLAFSNorse names
OLAFSSeveral Norse kings
OLAFSFive Norse kings
OLAFSFive Norwegian royals