a not so 'prim and proper' princess

Alicia was still shaken by what had just happened in Harold's chamber as she returned to her chamber with wobbly feet. She looked down at her bloodstained hands and wondered what he meant by those words he had muttered to himself.

'The calluses are not from your tough life in the mountains.'

What did that mean? Although she had always known that the princess's hands, which she possessed, were rough and hard, compared to her own hands which were very soft and delicate, thanks to all the beauty products she applied and the manicures she always received, she had never thought much of it.