Originally Posted by Stefan
In the german magazines there where some rumours about Countess Anna Plater-Syberg in the 90's and also about another woman Sigrid van Erps who was from Switzerland if i remember correct.
Anna Plater-Syberg later went into a convent btw.
Fiametta de Frescobaldi later married the second son of the duke of Arenberg and a princess of Bavaria and thus is a regular guest at Belgian noble and royal gatherings.
Still, the only 'serious' relationship he had before Mathilde is said to be with Barbara Marselis indeed, which was broken of by his father and court as she was not noble. Barbara ended up marrying the son of an artist friend of Queen Paola.
According to one of the many stories about the meeting of Philippe & Mathilde, it was actually Stephanie de Lalaing (who denies that they ever had a relationship) who pointed out Mathilde to him, and said 'look, there is a nice devout girl for you'.