a branch of her roots. Her brother Ptolemy III (Euergetes), "roots" referring to their father Ptolemy II (Philadelphus).
in his estate. in his stead. Hebrew. kanno. See note on Daniel 9:27 ("for the overspreading"): i.e. in the stead of Philadelphus, who avenged the murder of Berenice and her son by Laodice. Euergetes had been restored. This is the second king of the south.