Hungarian subtitles for The Crown (2016) are generally available on Netflix , with additional options found through community sites like OpenSubtitles, which offer user-created files for download.
If you cannot find Hungarian subtitles, you can often unlock them by setting your Netflix profile language to Hungarian or by using Addic7ed for external subtitle files. Unlocking Hungarian Cinema: Finding English Subtitles - Ftp The Crown (2016) Hungarian subtitles