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 clear that her mother had hoped to secure a marriage between Yolanda and the noble Walram of Monschau, in order to enhance the power and influence of the Counts of Vianden, particularly in their relationships with the Counts of Luxembourg. In 1245, when Yolanda was 14, her mother, the Marchioness Margaret of Courteney, accompanied Yolanda 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.