why did mary queen of scots have claim to english throne
Mary, Queen of Scots In November 1558, Henry VIII's elder daughter, Mary I of England, was succeeded by her only surviving sibling, Elizabeth I. Under the Third Succession Act, passed in 1543 by the Parliament of England, Elizabeth was recognised as her sister's heir, and Henry VIII's last will and testament had excluded the Stuarts from succeeding to the English throne. Yet, in the eyes of many Catholics, Elizabeth was illegitimate, and Mary Stuart, as the senior descendant of Henry VIII's elder sister, was the rightful queen of England.[46] Henry II of France proclaimed his eldest son and daughter-in-law king and queen of England, and in France the royal arms of England were quartered with those of Francis and Mary.[47] Mary's claim to the English throne was a perennial sticking point between her and Elizabeth I.[48]
Kingdom of England The standard title for monarchs from Æthelstan until John was Rex Anglorum ("King of the English"). Canute the Great, a Dane, was the first to call himself "King of England". In the Norman period Rex Anglorum remained standard, with occasional use of Rex Anglie ("King of England"). From John's reign onwards all other titles were eschewed in favour of Rex or Regina Anglie. In 1604 James I, who had inherited the English throne the previous year, adopted the title (now usually rendered in English rather than Latin) King of Great Britain. The English and Scottish parliaments, however, did not recognise this title until the Acts of Union of 1707.