Initially, queen Amalia's Lutheran religion was not given much attention, but the aversion to it grew when she did not give birth to a child which could be raised Orthodox. One of the biggest crises of Otto's reign, as well as Amalia's unpopularity, was the succession crisis. The cause of the childlessness of Otto and Amalia has been the cause of debate. During this time period, infertility was commonly considered the fault of the woman, and Amalia's frequent dancing and riding were blamed for it. She was exposed to various fertility treatments until her 35th birthday. Otto's brothers were given the right to the throne after him, but it was rumoured that queen Amalia wished to have her own brother Elimar of Oldenburg appointed heir instead.