Slip into this medieval church for some rather eclectic 15th-century frescoes, in which frogs, foxes, bulls and rams spring from bizarre-looking faces, and where pipers and lute players burst from giant flowers. Other highlights include an ornate rococo gallery and a 17th-century organ, the latter played by Dieterich Buxtehude (1637–1707), a baroque composer who greatly influenced Bach; the frequent organ concerts are attended by aficionados. Sankt Mariæ Kirke is attached to one of Scandinavia’s best-preserved medieval monasteries, Karmeliterklostret.
It's believed that Christian II’s mistress, Dyveke (c 1490–1517), is buried here.