 Complete the following phrase:  On 23 April 1551, at the age of sixteen, William was declared an adult by a decree of Emperor Ferdid I. He took up the administration of the familys possessions and chose as his residence Český Krumlov Castle, which he remodeled in a Renaissance style. From 1552 to 1556, he fought a court case against Henry IV of Plauen, the High Chancellor of Bohemia, about their precedence in Bohemian society. William won. In 1560, he was appointed High Treasurer by King Ferdid. In 1566, he was appointed commander of the Bohemian army and on 10 June 1566, he began forming an army at Znojmo to fight a war against the Ottoman Empire. Their aim was to recapture 