A friend of my told me she had seen it in the program 'Royalty' . She is quite sure they were a couple. (bodylanguage!) It was on his birthdayparty last year. The girl had long brown hair and she was wearing a red dress.
Thanks Eva-Britt for the answer.
Do you have pictures or a video of that event because I have never seen pictures from Amedeo's birthdayparties.