During the early years of her reign, it was the universal opinion at home and abroad that without Spanish protection she could not preserve her throne against a French invasion in the interests of Mary Stuart. Henry II. meant that, by the marriage of the Dauphin Francis with Mary, the kingdoms of England and Scotland should be united to one another and eventually to France. Philip would thus lose the command of the sea route to the Netherlands, and the hereditary duel with the House of Austria would be decided. This scheme could not seem fantastic in a century which had seen such immense agglomerations of territory effected by political marriages. Philip, on the other hand, made sure that the danger from France must necessarily throw Elizabeth and England into his arms. Notwithstanding the warnings he received from his ambassador Feria that Elizabeth was a heretic, he felt certain that she would not venture to alter religion at the risk of offending him. The only question with him was whether he should marry her himself or bestow her on some sure friend of his house. That she would refuse both himself and his nominee was a contingency he never contemplated. Elizabeth, from the first, made up her mind that the cards in her hand could be played to more advantage than Philip supposed. England, no doubt, needed his protection for the present. But could he please himself about granting it? Her bold calculation was that his own interests would compel him, in any case, to prevent the execution of the Stuart-Valois scheme, and that consequently she might settle religion without reference to his wishes. The offer of marriage came in January 1559. In his letter to Feria, Philip spoke as if Elizabeth would of course jump at it. After dwelling on its many inconveniences, he said he had decided to make the sacrifice on condition that Elizabeth would uphold the Catholic religion; but she must not expect him to remain long with her; he would visit England occasionally. Feria foolishly allowed this letter to be seen, and the contents were reported to Elizabeth. She was as much amused as piqued. Their ages were not unsuitable. Philip was thirty-two, and Elizabeth was twenty-five. But she was as fastidious about men as her father was about women; and for no political consideration would she have tied herself to her ugly, disagreeable, little brother-in-law. After some fencing, she replied that she did not mean to marry, and that she was not afraid of France.