The chapel with Alena's relics became a popular place of pilgrimage. Her shrine became incorporated into the parish church of Forest as a chapel which held her cenotaph and relics. By around 1600, her jawbone and upper arm were preserved in the parish church, each in its own jewel-studded reliquary dating from the 15th century. The rest of the bones, with the exception of the collarbones, were preserved in the abbey church in a Baroque reliquary (1644) commissioned by Françoise de Bette, abbess 1637–1666. When the abbey was suppressed in 1796 the last abbess, Juana Francisca de Rueda de Conteras (1785–1818), removed this reliquary to a monastery near Würzburg. It was returned to Forest only in 1812. The collarbones are still kept in a reliquary in the church of St Ambrosius in Dilbeek.