 Complete the following phrase:  It is believed that this fortress was founded in the 10th century during the reign of the Vojislavljević dynasty in then-known Dioclea, whereas the first known written testimony of the fortress originate from mid-14th century. The fortress served as the capital of Zeta under the Crnojević dynasty from 1466 till 1478, being the seat of Stefan and Ivan Crnojević. However, Ivan Crnojević was forced to move the capital in 1478 when the Ottomans seized the town during the siege of Shkodra, holding it until the decision of the 