The chronicles of Paes and Nuniz (Vijayanagara) 1.4.4

1.4.4

So that, returning to the city of Bisnaga, you must know that before you arrive at the city gates there is a gate with a wall that encloses all the other enclosures of the city, and this wall is a very strong one and of massive stonework; but at the present time it is injured in some places. They do not fail to have citadels[411] in it. This wall has a moat of water in some places, and in the parts where it was constructed on low ground. And there is, separate from it, yet another (defence) made in the following manner. Certain pointed stones of great height are fixed in the ground as high as a man's breast; they are in breadth a lance-shaft and a half, with the same distance between them and the great wall. This wall rises in all the low ground till it reaches some hill or rocky land. From this first circuit until you enter the city there is a great distance, in which are fields in which they sow rice and have many gardens and much water, which water comes from two lakes. The water passes through this first line of wall, and there is much water in the lakes because of springs; and here there are orchards and a little grove of palms, and many houses.