Design: Nanna Gudmand-Høyer
It is name after the litte castle "Rosenborg" ("Rose Castle" in English) in the middle of Copenhagen, Denmark. It is crochet on a big crochet hook, so it is absolutly a weekend project.
Chrochet hook: 8 mm yarn: 300 g 123 Silk Tweed, Cobalt Blue
The pattern is for the time being only available in danish. The pattern can be downloaded from here in pdf-fomat.