biographer of Gertrude mentions that after the death of Pippin the Elder in 640, his widow Itta pondered daily on what was to become of her and her daughter. Upon the advice of Amand, she ordered the construction of a monastery to which she and Gertrude could retire. According to Wemple, "A mother's importance was acknowledged in law insofar as she had the right to assume the guardianship for her fatherless children. In the propertied classes, this meant that a widow could exercise considerable power by managing the estates of her minor children and arranging for their marriages." Itta lost this right after the death of her husband Pippin because their sons had come of age. She still had the option to find a suitable husband for Gertrude. Catherine Peyroux has said that Itta established the monastery in order to protect her and her daughter in the event that her sons fell out of favor with the ruling dynasty, as well as to safeguard the family lands from plunder or seizure through forced marriage. Foundress Christianity was not at all widespread in Gertrude's place and time. It was only the development of cities and the initiative of bishops that led to a vast movement of evangelism, and a flowering of monasteries in the 7th and 8th centuries. Gertrude's Vita describes how Bishop Amand came to Itta's house, "preaching the word of God. At the Lord's bidding, he asked whether she would build a monastery for herself and Christ's handmaid, Gertrude." Itta founded Nivelles, a double monastery, one for men, the other for women. However, after they entered the religious life, Gertrude and her mother suffered, "no small opposition" from the royal family. During this period, trials for the family are mentioned involving the usurper Otto's bid to replace the Pippinids at the side of the king. There is some precedent for Gertrude and Itta's move to the monastery at Nivelles. According to Wemple, "during the second half of the seventh century, women in Neustrian-Burgundian families concentrated on the creation of a network of monasteries rather than on the conclusion of politically advantageous unions, while families whose holdings were in the northeastern parts of the kingdom, centering around the city of Metz, were more concerned with the acquisition of power through carefully arranged marriages." Itta's move to start a monastery was thus not completely out of the ordinary, and may have