In the year of the Lord 1398, on the 18th day of January, being the Feast of St. Prisca, Virgin and Martyr, our Right Reverend Lord Frederic of Blanckenhem, the renowned Bishop of Utrecht, issued his license to the devout priests, Egbert van Lingen, and Wolfard, the son of Matthias, and to the other Clerks and Lay Brothers that dwelt on Mount St. Agnes, in Nemel, near Zwolle, for it was his desire to increase the glory of God, and to promote the cause of Holy Religion. By the full authority vested in him he gave them leave to build a monastery for the Order of Canons Regular in any fit and proper place in his diocese, so that they might worthily and devoutly serve as the soldiers of Almighty God in the Regular Order, following the rule of the blessed Augustine. So having obtained this licence in their favour, they chose a place in the freehold land that is called Westerhof, in the district of Gherner and the parish of Dalvessen, the curate of which parish, who was an honourable man named Frederic Denter, giving his assent to their purpose. They determined to set their monastery here because they had found no other site that was fitting, although they sought anxiously elsewhere a place of habitation. At this time the men of Zwolle would not suffer a monastery to be builded upon the Mount at Nemel, though this was done in after days by the favour of God, but Egbert Mulart had given them this land at Westerhof. He was a most upright man, and one in authority, being of gentle lineage in Hasselt, and he was a trusty friend and a special patron of the devout. Here then they builded for their first need a small chapel, which they let consecrate in honour of Mary, the most Blessed Mother of God, and also other buildings of moderate size, and they reverently called the place "The Garden of the Blessed Mary," in honour of Christ's gentle Mother. When these things were done, the day drew nigh on which the Brothers of this House should be invested there. Now on the day of the Lord's Annunciation, which is the solemn Feast of the Blessed Mary ever Virgin, Mother Church doth celebrate throughout all the world the first act of our Redemption. So that when that holy day had dawned with fair sunshine there came the Reverend Lord Hubert, Bishop of Yppuse, and Suffragan to our Lord Bishop of Utrecht, for he had been summoned thither upon that day. And when the waxen tapers and crosses and the other ornaments were ready, he there consecrated the burial ground, and the three altars, and then at the High Altar, which he had dedicated, he sung Mass with solemn music.