Myriam De Lourdes goes by Mimi.
Lourdes Colon goes by Tita.
Lourdes Cols goes by Lulu.
Lourdes Pantin goes by Lulu.
Lourdes Duque Baron goes by Lou Baron.
Lourdes Helena Gallagher goes by Helena Gallagher.
Emile de Antonio went by De.
I am going to Lourdes > je vais à Lourdes - to go is 'aller' in French (conjugated verb in link)
Joaquim de Almeida goes by Quim.
Chico de Andrade goes by Chico.
Michele De Angelis goes by Mimmo.
Anatole de Grunwald went by Tolly.
Francis de Guingand went by Freddie.