When it became too small, an adjacent Wallfahrtsbasilika (Pilgrimage Basilica) was built, dedicated to the Visitation (Mariä Heimsuchung).

[1] The Gnadenbild [de] is a wood-carved figure of Mary with her son on her lap, dated to the 12th century.

[2] When the Baroque church became too small for the growing number of pilgrims, an adjacent Wallfahrtsbasilika was created.

[2] He used Rüthener Grünsandstein, a local sandstone, for a building dominated by two high steeples in the west.

[2] The basilica was consecrated, dedicated to the Visitation (Mariä Heimsuchung), on 24 May 1911 by Karl Joseph Schulte, Bishop of Paderborn.