 The apse is dominated by the imposing red-marbled wooden retable in Baroque style from 1839-1840 by Carl Roesner, replacing the dilapidated old altarpiece.It surrounds the large canvas (720 cm x 430 cm) by Leopold Kuppelwieser (1840), flanked by red Corinthian columns.It depicts the establishment by Pope Pius V of the "Feast of the Rosary".