They advanced accordingly, and when they came near to the city they found that Romulus had taken possession of two hills without the walls, where he had entrenched himself in great force. These two hills were named the Esquiline and Quirinal hills. The city itself included two other hills, namely, the Palatine and the Capitoline. The Capitoline hill was the one on which the asylum had formerly been built, and it was now the citadel. The citadel was surrounded on all parts with ramparts and towers which overlooked and commanded all the neighboring country. The command of this fortress was given to Tarpeius, a noble Roman. He had a daughter named Tarpeia, whose name afterward became greatly celebrated in history, on account of the part which she took in the events of this siege, as will presently appear. At the foot of the Capitoline hill, and on the western side of it, that is, the side away from the city, there was a spacious plain which was afterward included within the limits of the city, and used as a parade-ground, under the name of Campus Martius, which words mean the "War Field." This field was now, however, an open plain, and the Sabine army advancing to it, encamped upon it. The Sabine forces were much more numerous than those of the Romans, but the latter were so well guarded and protected by their walls and fortifications, that Titus Tatius saw no feasible way of attacking them with any prospect of success. At last, one day as some of his officers were walking around the Capitoline hill, looking at the walls of the citadel, Tarpeia came to one of the gates, which was in a retired and solitary position, and entered into a parley with the men. The story of what followed is variously related by different historians, and it is now difficult to ascertain the actual truth respecting it. The account generally received is this:-- [Illustration: PROMISING THE BRACELETS.]