Occitan cross

The Occitan cross, also called cross of Occitania, cross of Languedoc or cross of Toulouse, heraldically "cross cleché, pommettée and voided", is a heraldic cross, today chiefly used as a symbol of Occitania.

In the Chanson de la Croisade Albigeoise, it goes by the name of "Raymondine cross".

The design was probably first used in the coat of arms of the counts of Forcalquier, in the 12th century, and by the counts of Toulouse in their capacity as Marquises of Provence, on 13th century coins and seals.

Source: Wikipedia