- en.wikipedia.org Fredriksholm FortressThe remains of the fortress seen from west, a winter day in 2006. Batteriodden on the mainland in the background to the left.
- flickr.com photos/gormjarl/50904918732Fredriksholm Fortress was located one kilometer north of the precursor, Christiansø Fortress on Gammeløya.
- commons.wikimedia.org wiki/Category:Fredriksholm_…Fredriksholm Fortress. building in Kristiansand, Southern Norway. Restene av festningen sett fra vest en vinterdag i 2006.
- tripadvisor.com Attraction_Review-g190492-…Don’t need a lot of time, simple stop by for pictures, cannons surrounding fortress overlooking waterfront..
- no.polomap.com tr/kristiansand/8055Fredriksholm Fortress bulunur 4604 Kristiansand, Норвегия, bu yerin yakınında: Vest-Agder-museet IKS (614 m), Frøysland industriservice AS (1 km)...
- visitnorway.com listings/fredriksten-fortress/…Construction of Fredriksten started in 1661 after Norway lost the Bohuslän district and Bohus Fortress to Sweden in 1658.Bulunamadı: fredriksholm
- http://starforts.com fredrikstad.htmlIn one of the final acts of this brief war, Sweden's navy sailed against Fredrikstad Fortress in August of 1814.Bulunamadı: fredriksholm
- 2pos.today et/5822/3222Olete jõudnud sellele lehele, sest see on kõige tõenäolisem otsin: või määratlemata, Fredriksholm Fortress Kristiansand, Norra, Fredriksholm Fortress...
- everycastle.com fredriksten-fortress/The Fredriksten fortress covers an extensive area of 2,000 square meters (21,528 square feet) and contains storehouses, powder houses, bastions, and deep...Bulunamadı: fredriksholm