On July 9, Prince Albert II and his twins Prince Jacques and Princess Gabriella attended the IAAF Diamond League Meeting Herculis EBS 2021 at the Louis II Stadium in Monaco. The first Monaco Herculis EBS meeting took place in 1987 in the newly constructed Stade Louis II. The Diamond League is the top tier of World Athletics’ global invitational track and field meeting competition structure. Prince Albert himself chairs the MFA since its creation.