The death of his half-brother Charles the Bold in 1477 changed everything. David's politics led to a revolt of supporters of the Hook party in 1481. A new civil war erupted and David was captured. Maximilian I, Holy Roman Emperor had to intervene to free the bishop. David then reconquered Utrecht in the Battle of Westbroek, only to be driven out again in 1483. After the successful Siege of Utrecht, the revolt came to an end in 1483.&lt;br&gt;