We will try to understand, in as few words as possible, who Mary was, what she was, and how she came to be a thorn in the royal pillow of Elizabeth.
She was the daughter of the Queen Regent of Scotland, MARY OF GUISE. She had been married, when a mere child, to the Dauphin, the son and heir of the King of France. The Pope, who pretended that no one could rightfully wear the crown of England without his gracious permission, was strongly opposed to Elizabeth, who had not asked for the said gracious permission. And as Mary Queen of Scots would have inherited the English crown in right of her birth, supposing the English Parliament not to have altered the succession, the Pope himself, and most of the discontented who were followers of his, maintained that Mary was the rightful Queen of England, and Elizabeth the wrongful Queen. Mary being so closely connected with France, and France being jealous of England, there was far greater danger in this than there would have been if she had had no alliance with that great power. And when her young husband, on the death of his father, became FRANCIS THE SECOND, King of France, the matter grew very serious. For, the young couple styled themselves King and Queen of England, and the Pope was disposed to help them by doing all the mischief he could.
Now, the reformed religion, under the guidance of a stern and powerful preacher, named JOHN KNOX, and other such men, had been making fierce progress in Scotland. It was still a half savage country, where there was a great deal of murdering and rioting continually going on; and the Reformers, instead of reforming those evils as they should have done, went to work in the ferocious old Scottish spirit, laying churches and chapels waste, pulling down pictures and altars, and knocking about the Grey Friars, and the Black Friars, and the White Friars, and the friars of all sorts of colours, in all directions. This obdurate and harsh spirit of the Scottish Reformers (the Scotch have always been rather a sullen and frowning people in religious matters) put up the blood of the Romish French court, and caused France to send troops over to Scotland, with the hope of setting the friars of all sorts of colours on their legs again; of conquering that country first, and England afterwards; and so crushing the Reformation all to pieces. The Scottish Reformers, who had formed a great league which they called The Congregation of the Lord, secretly represented to Elizabeth that, if the reformed religion got the worst of it with them, it would be likely to get the worst of it in England too; and thus, Elizabeth, though she had a high notion of the rights of Kings and Queens to do anything they liked, sent an army to Scotland to support the Reformers, who were in arms against their sovereign. All these proceedings led to a treaty of peace at Edinburgh, under which the French consented to depart from the kingdom. By a separate treaty, Mary and her young husband engaged to renounce their assumed title of King and Queen of England. But this treaty they never fulfilled.
It happened, soon after matters had got to this state, that the young French King died, leaving Mary a young widow. She was then invited by her Scottish subjects to return home and reign over them; and as she was not now happy where she was, she, after a little time, complied.
Elizabeth had been Queen three years, when Mary Queen of Scots embarked at Calais for her own rough, quarrelling country. As she came out of the harbour, a vessel was lost before her eyes, and she said, 'O! good God! what an omen this is for such a voyage!' She was very fond of France, and sat on the deck, looking back at it and weeping, until it was quite dark. When she went to bed, she directed to be called at daybreak, if the French coast were still visible, that she might behold it for the last time. As it proved to be a clear morning, this was done, and she again wept for the country she was leaving, and said many times, ' Farewell, France! Farewell, France! I shall never see thee again!' All this was long remembered afterwards, as sorrowful and interesting in a fair young princess of nineteen.