BRIANSTON, (Dorset) on the Stour, near Blandford, the seat of the ancient family of the Rogers's, who held it in grand serjeanty to find a man to go before the K. in his wars against Scotland, or Wales, in his shirt and drawers, holding in one hand a bow without a string, and in the other an arrow without a feather. It was, not long ago, bought by Sir William Portman, whose adopted son, Henry, adorned it with buildings; and it is now the seat of Will. Portman, Esq;.