It was probably the companion of her childhood.

In his society she would most speedily regain her lost peace of mind.
In his place she had at first found only Erasmus Eckhart.
The strong, bold boy had become a fine-looking man.
A certain gravity of demeanour had early taken possession of him, and while his close-shut lips showed his ability to cling tenaciously to a resolution, his bright eyes sparkled with the glow of enthusiasm.
Barbara could believe in this young man's capacity for earnest, lofty aspiration, and for that very reason it had aroused special displeasure in her mind when he gaily recalled the foolish pranks, far better suited to a boy, into which as a child she had often allowed herself to be hurried.
She felt as if, in doing so, he was showing her a lack of respect which he would scarcely have ventured toward a young lady whom he esteemed, and the petted singer, whom no less a personage than the Emperor Charles deemed worthy of his love, was unwilling to tolerate such levity from so young a man.
She made no claim to reverence, but she expected admiration and the recognition of being an unusual person, who was great in her own way.
For the sake of the monarch who raised her to his side, she owed it to herself to show, even in her outward bearing, that she did not stand too far below him in aristocratic dignity.
She succeeded in this admirably during the conversation on music and singing which she carried on with Erasmus.
When she at last desired to return home, Wolf accompanied her up the stairs, informed her of his conversation with the confessor, and at the same time warned her against incautious visits to the Hiltners so long as the Emperor held his court in Ratisbon.
To have fallen under suspicion of heresy would have been the last thing Barbara expected, and she called it foolish, nay, ridiculous.

But, ere she clasped Wolf's hand in farewell, she promised to show the almoner at the first opportunity upon how false a trail he had come..