Patricia Genoud-Feldman has been practicing Buddhist meditation (vipassana and Dzogchen) in Asia and the West since 1984 and teaching vipassana internationally since 1997. She is a co-founder and guiding teacher at the Meditation Centre Vimalakirti in Geneva, Switzerland.
This is a general template and might need adjustments based on the specific nature of "Purity" and the 4link service you're referring to.