The Duke took a while before he started speaking.
"My only sister was married to Prince Christopher. At that time, he was the firstborn and the crown prince of Nixel. The marriage had been arranged by our fathers, but later it turned out that the prince had taken a liking to my sister and personally asked his father for her hand.
The two got along well after the engagement and married two years later. After their marriage, my sister became pregnant twice but lost both pregnancies. The situation was strange, but she never told anyone what was happening.
The year Prince Christopher died, my sister had just begun to suspect that there was something wrong with the second prince.
She had no evidence and wanted to investigate quietly. After all, the two princes were close.
