Indeed, her mother had hoped to arrange a marriage to the noble Walram of Monschau, in order to consolidate the influence of the Counts of Vianden, especially in their relations with the Counts of Luxembourg. In 1245, when Yolanda was 14, her mother, the Marchioness Margaret of Courteney (), brought Yolanda along as her companion on a visit to the Dominican monastery of Marienthal, where Yolanda unexpectedly fled into the protection of its cloister and gained admission as a novice.
It is true that her mother had intended to arrange a marriage between Yolanda and the noble Walram of Monschau, with the goal of increasing the influence of the Counts of Vianden, especially in their dealings with the Counts of Luxembourg. In 1245, when Yolanda was 14, her mother, the Marchioness Margaret of Courteney, took Yolanda along on a trip to the Dominican monastery of Marienthal, where Yolanda unexpectedly sought refuge within its cloister and gained acceptance as a novice.