 Complete the following phrase:  Menaced by Sigismund, the citizens of Prague entreated the Taborites for assistance. Led by Žižka and their other captains, the Taborites set out to take part in the defence of the capital. At Prague, Žižka and his men took up a strong position on the hill just outside the city known as the Vítkov, now in Žižkov, a district of Prague named after the battle in his honour. On July 14 the armies of Sigismund made a general attack. A strong German Crusader-led force assaulted the position on the Vítkov, the stronghold that secured the Hussite communications with the open country. Thanks to Žižkas personal leadership, the attack was thrown back and the forces of Sigismund abandoned the siege. On August 22 the Taborites left Prague and returned to Tábor. Though Sigismund had retired from Prague, the castles of Vyšehrad and Hradčany remained in possession of his troops. The citizens of Prague laid siege to the Vyšehrad see 