The murder of Cardinal Beaton helped to force the bishops and clergy to realise the danger of their position. They urged the regent to take stern measures in defence of the church, and what was of much more importance they attempted to set their own house in order as the best preparation for the conflict. John Hamilton, brother of the regent, was appointed Archbishop of St. Andrew's in succession to Cardinal Beaton (1547). He assembled a national synod at Edinburgh (1549) which was attended by the bishops, abbots, and representatives of the chapters, religious houses, and collegiate churches.[9] Though the presence of men like Lord James Stuart, the illegitimate son of James V., as commendatory prior of St. Andrew's was not calculated to inspire confidence in the decrees of the assembly, a very wholesome scheme of reform was carried through, which, had it been enforced, might have gone far to save Catholicism in Scotland. Severe laws were passed against concubinage of the clergy, their neglect of their primary duties of preaching and instructing their flocks, and against the alienation of ecclesiastical property. Measures were taken to ensure that priests should explain the principal points of Catholic doctrine and the Scriptures regularly in their principal churches. Another synod held in 1552 continued the work of reform. Its references to the question of marriage and to the non-attendance of the people at their religious duties seem to indicate that religion was not then in a flourishing condition. The synods ordered the publication of a catechism, and enjoined all priests who had care of souls to explain a portion of it every Sunday before the principal Mass. In accordance with this decree an excellent catechism[10] containing a very full exposition of Catholic doctrine was published. Had it come earlier, or had the clergy even then been able and willing to explain it to their people, Knox and his companions might have found themselves confronted with a much more difficult task.