Tyburn (Charing Cross), along Fleet Street and over the Fleet Bridge, climbing Ludgate Hill (by gravitational pressure) to a public conduit at Cheapside. Water was supplied free to all comers. Tyburn had significance from ancient times and was marked by a monument known as "Oswulf's Stone", which gave its name to the Ossulstone Hundred of Middlesex. The stone was covered over in 1851 when Marble Arch was moved to the area, but it was shortly afterwards unearthed and propped up against the Arch. It has not been seen since 1869. For much of its history, public executions took place at Tyburn,
Adorers of the Sacred Heart of Montmartre Arch. Near the convent was the site of Tyburn tree where 105 Catholic martyrs—including Saint Oliver Plunkett and Saint Edmund Campion—were executed during and following the English Reformation from 1535 to 1681. The nuns established at Tyburn the Martyrs' Shrine to honour the more than 350 Catholic Martyrs who were executed in England during and after the Reformation. Tyburn Convent is now the Mother House of the Congregation. Mother Mary of St Peter founded the Adorers to carry out Adoration of the Sacred Heart of Jesus in the exposed Blessed Sacrament, originally in the Basilica of the Sacred Heart at