In the year of the Lord 1408, on the Vigil of Ascension Day, Brother William Vorniken, from the Monastery at Windesem, was chosen to be Prior of Mount St. Agnes.  He was the second Prior of our House, which he ruled for seventeen years, being a lover of poverty and discipline.  After that he was taken away from us he was promoted to the Superior House at Windesem, and became Father General of all our Order.  He it was who looked to the roofing of the church, the making of new stalls in the choir, and the provision of fair vestments to be worn by priests and servers on festivals.  Also he enlarged the borders of the monastery, and surrounded the whole with a wall of stone; he built a new dwelling for the husbandmen and placed a byre for cattle near the gate, likewise in the year of his departure he began to make a mill and to build a brewery.  In several places he planted trees of divers kinds, of which some were fruit trees; and he made smooth the slopes of the mountain, which for the most part still remained steep, and this he did by carrying away the sandy soil.

He ordered the altars to be beautified with pictures, and good store of books to be written for the choir and the library.  Yet in the midst of all these things poverty and simplicity were dear to him, and with his own hand he illuminated many books.  He took divers Lay Brothers to dwell with him, for he saw with the eye of charity that they would earn the reward of eternal life by faithfully cleaving to their holy labours, and living the common life under obedience.  Some of these he received as Donates, others he invested with the habit of Converts.

During the years that he was Prior he invested fourteen Clerks, whose names, with the days of their investiture, are written hereafter.

In the year 1408, on the Feast of St. Michael the Archangel, was invested Brother Nicholas Creyenschot, a native of the town of Kampen, a youth in years but upright in character.

In the year 1410, on the Feast of All Saints, two Brothers were invested together, namely, Wermbold, a priest of Kampen and kinsman to John of Ummen, and Gerard Ae of Utrecht.

In the year 1411, on the Vigil of the Nativity, three Brothers were invested together, namely, John the son of Gerard, John Bowman, and Gerard son of Wolter, a Convert; all these came from Zwolle.  In the year 1413, on the Feast of the Visitation of the Blessed Virgin, was invested Brother John of Lent, a town one mile from Zwolle.  In the year 1418, on the Vigil of the Nativity, three Brothers were invested together, namely, Rudolph of Oetmersen in Twenthe, Otto Lyman of Goch in Geldria, and Henry the son of James of Zwolle.

In the year 1421, on the Vigil of the Nativity, two Brothers were invested:  namely, Henry, son of William, of Deventer, and Deric Veneman of Zwolle.

In the year 1423, on Easter Eve, two Converts were invested, namely, Gerard ten Mollen of Zwolle, and Gerard Hombolt of Utrecht.