It was part residence , part farm , and enclosed so it could serve as a small fort .
Slangerup , earlier Slangir , was a royal residence from Viking times , perhaps as early as 1000 .
Slangerup was part residence , part farm , and enclosed so Slangerup could serve as a small fort .
Slangerup , earlier Slangir , was a royal residence from Viking times , perhaps as early as 1000 .