Leo Barraclough International Features EditorThree-part documentary series “Delphine: My Story” tells how the artist Delphine Boël, the illegitimate daughter of King Albert II of Belgium, fought for legal recognition, and is now known as Princess Delphine of Saxe-Coburg. It has been sold to multiple territories, Warner Bros. announced at MipTV in Cannes Tuesday.HBO Max has picked up the show in numerous territories in Europe.