She recycled a short A-line skirt by Chloe, which showed off her enviable waist, with a pair of over-the-knee boots.
The princess wore her shoulder-length brown hair loose and accessorised with tiny flower earrings and a diamond pendant.
She also clutched a fashionable leather handbag by Prada.
Princess Mary is a passionate advocate for women’s rights, and attended the roundtable with 16 other Danish leaders.
The princess has previously delivered powerful speeches about the importance of gender equality.
‘Human rights are the basic rights and freedom that belong to every person in the world from birth until death,” the 45-year-old has previously said.
‘As a nation, we have seen first-hand that gender equality is a prerequisite for economic growth, welfare, social cohesion and the freedom and opportunities of the individual.’