By expresse Words, or Testament, when it is declared by him in his life time, viva voce, or by Writing; as the first Emperours of Rome declared who should be their Heires. For the word Heire does not of it selfe imply the Children, or nearest Kindred of a man; but whomsoever a man shall any way declare, he would have to succeed him in his Estate. If therefore a Monarch declare expresly, that such a man shall be his Heire, either by Word or Writing, then is that man immediately after the decease of his Predecessor, Invested in the right of being Monarch.