If you own the series on physical media or a different platform and need to add subtitles manually, several databases host community-translated Swedish SRT files:
If you prefer a physical copy, verify the region and subtitle support before buying. The Crown (2016) Svenska undertexter
: Go to your Netflix Account Settings and set your profile language to Svenska . This often "unlocks" Swedish subtitles for shows that might only show English by default. During Playback : If you own the series on physical media
Select the icon (speech bubble) at the bottom or top of your screen. The Crown (2016) Svenska undertexter
: Lists specific DVD sets of The Crown that include Swedish subtitles pre-installed. Using Subtitles for Language Learning: The Ultimate Guide