Kings III 1:11

11 And Nathan spoke to Bersabee the mother of Solomon, saying, Hast thou not heard that Adonias the son of Aggith reigns, and our lord David knows it not?

Kings III 1:11 In-Context

9 And Adonias sacrificed sheep and calves and lambs by the stone of Zoelethi, which was near Rogel: and he called all his brethren, and all the adult of Juda, servants of the king.
10 But Nathan the prophet, and Banaeas, and the mighty , and Solomon his brother, he did not call.
11 And Nathan spoke to Bersabee the mother of Solomon, saying, Hast thou not heard that Adonias the son of Aggith reigns, and our lord David knows it not?
12 And now come, let me, I pray, give thee counsel, and thou shalt rescue thy life, and the life of thy son Solomon.
13 Haste, and go in to king David, and thou shalt speak to him, saying, Hast not thou, my lord, O king, sworn to thine handmaid, saying, Thy son Solomon shall reign after me, and he shall sit upon my throne? why then does Adonias reign?

Footnotes 2

The Brenton translation of the Septuagint is in the public domain.