He did not exactly directly announced that a certain person will be heir to his throne. However, after he blesses and acknowledged the bravery of Macbeth and Banquo, he announces that his son Malcolm is now Prince of Cumberland, which only means that he can be the next king. Read act 1 scene 4.
In his aside, Macbeth reacts with shock and fear to the king's announcement that his son, Malcolm, will be heir to the throne. He reveals his inner thoughts about the possibility of murdering King Duncan to make the prophecy come true.
The air was hot, humid and muggy but the heir to the throne was not bothered, he was still set on inheriting the kingdom.
Upon her birth in 1926, she was not the heir to the throne. However, after he grandfather died (George V) in 1936 and her uncle (Edward VIII) abdicated after only 8 months as King she became the heir...
Malcolm suspected Macduff of having designs on the crown and throne of Scotland. In Act 4 Scene 3, Macduff had arrived in England from Scotland. He had joined the group of discontented Scotsmen that had formed around the subsequent King Malcolm III [d. November 13, 1093]. Malcolm wanted to take the throne of Scotland away from Macbeth [c. 1014-August 15, 1057]. He wanted someone else to kill and behead Macbeth. But he didn't want Macbeth's murderer to gain the Scottish crown and throne. Malcolm knew that Macbeth had had Macduff's entire family and household murdered. So he wanted Macduff to be Macbeth's murderer. But he wanted to make sure that Macduff would do the killing only to avenge his lost family and household. He wanted to make sure that Macduff wouldn't try to claim the crown and throne as his.
Because the Line of Descent was to the eldest child of the previous King, George VI, but as he had no son it went to Elizabeth who became Queen Elizabeth II. If Prince Philip was then to become King he would be of higher rank than the Queen. I think the idea of male succession in the UK throne is now abolished it will go to the eldest child in future irrespective of sex.
In 1.4, Duncan makes the important announcement that he is planning to step down as CEO of the company to pursue other opportunities. He expresses his gratitude for the team's hard work and dedication, and assures them that he will work closely with the board to ensure a smooth transition to new leadership.
Lady Macbeth uses Macbeth. She convinces him that he cannot wait for Fate to take its natural course. He must intervene to make things fir the prophecy; he must kill the king and frame his sons to make himself the heir to the throne.
Franz Ferdinand never reigned. His father's brother, Franz Joseph, was the Emperor for sixty-eight years. The Emperor's only son, the cousin of Franz Ferdinand, committed suicide when the Emperor refused him permission to marry the girl he loved (see the movie "Mayerling"). With that suicide the old Emperor had no heir, and tried to make his brother, Franz Ferdinand's father, the heir to the throne, but the brother did not want it. So that left Franz Ferdinand to be the heir to the throne when his old uncle might die, but he just lived on and on and on. Franz Ferdinand was heir for more than fifteen years, but when he was murdered his uncle was still alive. The old Emperor outlived Franz Ferdinand by two years, dying in 1916.
No.
Yes. He would succeed automatically on the death of the Queen, as he is her heir apparent.. After that, if he wanted, he could abdicate in favour of his son William. Alternatively, the Queen may decide to make William her heir, and disinherit Charles. Many observers think this will happen. Also there has always been a consensus among clairvoyants that Charles will never be King.
Henry VIII married more women after he had a son because he wished to have many more sons to make the succession to the English throne, steady in case one of his sons should die and another would be needed to take that sons place, keeping the throne in the hands of the Tudors.