Set in early 16th century, the fiction focuses on the events after the death of Queen Isabella of Castile and the issuing of the corresponding will.

Isabella's daughter Joanna finds herself in the middle of the political schemes of her father Ferdinand and her spouse Philip, son of Maximilian of Habsburg, with everyone in the Court having a vested interest in declaring her mad and unfit to rule.

The Broken Crown, Jordi Frades' [es] debut as feature film director, was written by José Luis Martín.

[3] The film was produced by Diagonal TV and R. Zinman Productions, with the participation of RTVE and the collaboration of Elipsis Capital.

[6] Raimon Lorda worked as cinematographer whilst Carlos J. Sanavia took over film editing.