Learn Swedish: Det här är slottet där kungen bor. - This is the castle where the king lives.

In Swedish, var is a question word used to ask 'where?' (like Var bor kungen?). However, when you describe a place in the middle of a sentence ('the place where...'), you must use där instead. It helps to think of it as literally saying 'This is the castle, there the king lives.'

Why does the sentence start with Det här instead of Den här?

The phrase for 'this' has to match the grammatical gender of the noun you are talking about. Because the word for castle is an ett-word (ett slott), you must use the matching ett-form det här.

Could I say Detta är slottet instead of Det här är slottet?

Yes! Det här and detta both mean 'this' and are usually interchangeable. Det här is slightly more common in everyday spoken Swedish, while detta can sound a bit more formal or written, especially in central and northern Sweden.

Why is the word order där kungen bor and not där bor kungen?