His worsening financial problems , said to be due to '' bad management and his gambling addiction '' , forced him to finally put the castle and its remaining 60,000 acres up for sale in 1920 .
His worsening financial problems , were said to be due to an extravagant lifestyle , '' bad management and his gambling addiction '' . 
 His mountainous debts finally forced him to put the castle and its remaining 60,000 acres up for sale in 1920 .