Conversation so far:
what were the plot precedents of shakespeare in love?
strong similarities between the film and the 1941 novel No Bed for Bacon, by Caryl Brahms and S.
J.
Simon, which also features Shakespeare falling in love.
what other similarities were there?
Alexandre Duval's "Shakespeare amoureux ou la Piece a l'Etude" (1804), in which Shakespeare falls in love with an actress who is playing Richard III.
any other similarities?
bestselling author Faye Kellerman.
She claimed that the plotline was stolen from her 1989 novel The Quality of Mercy.

Question: what came of this?
Self-contained rewrite: What came of Faye Kellerman's claim that the plotline was stolen from her?