A strong attachment seems to have subsisted between the emperor and his two sisters. Queen Eleanor's sweetness of disposition had particularly endeared her to her brother, who now felt her loss almost as keenly as that of one of his own children. "She was a good Christian," he said to his secretary, Gaztelu; and, as the tears rolled down his cheeks, he added, "We have always loved each other. She was my elder by fifteen months; and before that period has passed I shall probably be with her."[324] Before half that period, the sad augury was fulfilled. At this period--as we shall see hereafter--the attention of the government was called to the Lutheran heresy, which had already begun to disclose itself in various quarters of the country. Charles was possessed of a full share of the spirit of bigotry which belonged to the royal line of Castile, from which he was descended. While on the throne, this feeling was held somewhat in check by a regard for his political interests. But in the seclusion of the monastery he had no interests to consult but those of religion; and he gave free scope to the spirit of intolerance which belonged to his nature. In a letter addressed, the third of May, 1558, to his daughter Joanna, he says: "Tell the grand-inquisitor from me to be at his post, and lay the axe at the root of the evil before it spreads further. I rely on your zeal for bringing the guilty to punishment, and for having them punished, without favor to any one, with all the severity which their crimes demand."[325] In another letter to his daughter, three weeks later, he writes: "If I had not entire confidence that you would do your duty, and arrest the evil at once by chastising the guilty in good earnest, I know not how I could help leaving the monastery, and taking the remedy into my own hands."[326] Thus did Charles make his voice heard from his retreat among the mountains, and by his efforts and influence render himself largely responsible for the fiery persecution which brought woe upon the land after he himself had gone to his account. [Sidenote: HE CELEBRATES HIS OBSEQUIES.]