Born of unfree parents, Heimerad undertook pilgrimages in Germany, Italy and Palestine. After his return to Germany he became a monk in Hersfeld Abbey, but was expelled after a dispute about wearing the order's clothing. Nor was he accepted in the monastery at Paderborn. Because of his conspicuous and unusual way of life he was driven from several places, and became more and more desolate. At length he found a site for a hermitage on the Hasunger Berg (today Burghasungen in Zierenberg). At first mocked and scorned even there, with the passage of time he came to be revered as a saint and his advice was sought by the great: he was acquainted with the Empress Kunigunde, Bishop Meinwerk of Paderborn and Aribo, Archbishop of Mainz. He died in 1019, on 28 June, which is now his feast day.