From Catholic News Agency:
On Sunday, April 6, the fifth Sunday of Lent, St. Peter’s Basilica will display the revered “Veronica’s Veil,” a cloth that, according to tradition, was used to wipe the face of Jesus on his way to Calvary, renewing a very ancient tradition of the Catholic Church.
At 6 p.m. local time, while the litanies are being intoned, the faithful will walk through the naves of the basilica, entering through the Holy Door. From the Veronica loggia, the relic, also known as the Holy Face, will be displayed in an extraordinary liturgy.