Titulus Regius or the Act of Settlement is a statute of the Parliament of England issued in 1484 which confirmed the title of King of England which was given to Richard III in 1483.
Richard III held Parliament in 1484 which placed on record Titulus Regius which confirmed the legitimacy of his succession to the throne. Society of Antiquaries of London.
Lady Eleanor Talbot, also known by her married name Eleanor Butler, was an English noblewoman. She was a daughter of John Talbot, 1st Earl of Shrewsbury. After the death of Edward IV of England in 148
Titulus Regius
…throne. The reason stated was that when King Edward had secretly married Elizabeth Woodville in 1464 he had already secretly wed 'and stood married' to Lady Eleanor Butler (née Talbot) who was still living at the time of his 'pretensed marriage' to Elizabeth. The offspring of this bigamous union were illegitimate under Church law…
Bust of Talbot
Edward IV, alleged to have precontracted marriage to Eleanor Talbot