Passage: Mary had briefly met her English-born half-cousin Henry Stuart, Lord Darnley, in February 1561 when she was in mourning for Francis. Darnley's parents, the Earl and Countess of Lennox, who were Scottish aristocrats as well as English landowners, had sent him to France ostensibly to extend their condolences while hoping for a potential match between their son and Mary. Both Mary and Darnley were grandchildren of Margaret Tudor, sister of Henry VIII of England, and patrilineal descendants of the High Stewards of Scotland. Darnley shared a more recent Stewart lineage with the Hamilton family as a descendant of Mary Stewart, Countess of Arran, a daughter of James II of Scotland. They next met on Saturday 17 February 1565 at Wemyss Castle in Scotland, after which Mary fell in love with the "long lad" (as Queen Elizabeth called him—he was over six feet tall). They married at Holyrood Palace on 29 July 1565, even though both were Catholic and a papal dispensation for the marriage of first cousins had not been obtained.English statesmen William Cecil and the Earl of Leicester had worked to obtain Darnley's licence to travel to Scotland from his home in England. Although her advisors had thus brought the couple together, Elizabeth felt threatened by the marriage, because as descendants of her aunt, both Mary and Darnley were claimants to the English throne and their children, if any, would inherit an even stronger, combined claim. Mary's insistence on the marriage seems to have stemmed from passion rather than calculation; the English ambassador Nicholas Throckmorton stated "the saying is that surely she [Queen Mary] is bewitched", adding that the marriage could only be averted "by violence". The union infuriated Elizabeth, who felt the marriage should not have gone ahead without her permission, as Darnley was both her cousin and an English subject.

Question: What did the union do to Elizabeth?
infuriated