English Parliament passes Act of Succession
On 23 March, 1534, Parliament passed the Act of Succession, vesting the succession of the English Crown in the children of King Henry VIII and Anne Boleyn.
This act, effectively, set Princess Elizabeth first in line for the throne, declaring Princess Mary a bastard. It was also proclaimed that subjects, if commanded, were to swear an oath to recognizing this Act as well as the King's supremacy. People who refused to take the oath, including Sir Thomas More, were charged with treason.
This Act was overridden by the Act of Succession, 1536, which made the children of Jane Seymour first in line for the throne, declaring the King's previous marriages unlawful, and both princesses illegitimate.
1534 March 23: Parliament passes Act of Succession. Only the children of King Henry VIII marriage to Anne Boleyn are his lawful heirs
Succession, Act of (in English history) each of three Acts of Parliament passed during the reign of Henry VIII regarding the succession of his children.
The first (1534) declared Henry's marriage to Catherine of Aragon to be invalid and disqualified their daughter Mary from succeeding to the throne, fixing the succession on any child born to Henry's new wife Anne Boleyn. The second (1536) cancelled this, asserting the rights of Jane Seymour and her issue, while the third (1544) determined the order of succession of Henry's three children, the future Edward VI, Mary I, and Elizabeth I.