The baptism of the rose by H.R.H. the Hereditary Grand Duke of Luxembourg took place on 8 September 2021 in the rose garden 'Op de Rondellen' in Luxembourg. The rose was offered by the association Patrimoine Roses pour le Luxembourg to H.R.H the future Grand Duke on the occasion of his 40th birthday, November 11, 2021,
The rose 'Prince Guillaume, Grand-Duc héritier de Luxembourg' is a vigorous upright shrub that reaches a height of between 120 and 150 cm and bears an abundance of very full flowers. The romantic light pink bouquets exude a pleasant fragrance. It is a creation of Jean-Lin Lebrun, Mela Rosa, France.