Hi,

Do you mean that all pages are in English and you need new page in Swedish (it not difficult)? 

Or you want to crete Language Branch without Language (it could be difficult)?

In our case the new page should only be added to the language it was created from. For example if the page is created from english language then it should be available in english, if the page is created from german language that it should be available only in german langugae.

Thanks

Did you tried simply set the Language property?

 IContentRepository cr = ...
var page = cr.GetDefault<ModelType>(ContentReference.StartPage);
page.Language = new CultureInfo("de");

I tried it, it says LanguageBranchID is null

There is also overload version of GetDefault. Maybe this will work?

IContentRepository cr = ...
var page = cr.GetDefault<ModelType>(ContentReference.StartPage,new CultureInfo("de"));