If Arthur is a direct descendant of Septimus, his mother or grandmother's age is more of a limiting factor for childbirth than his father.
If Arthur is a direct descendant of Septimus, his mother or grandmother's age is more of a limiting factor for childbirth than his father.
如果亚瑟是西帕提姆斯的直系后代，对于生孩子来说,他的母亲或者祖母的年龄是一个更为重要的控制因素。