To pay for Richard's ransom, he had already been compelled to tax personal property, the first instance of such taxation for secular purposes.
There are lots of unsolved cases, kidnappings for ransom too.
An undisclosed ransom demand was made.
The whole of his ransom was never paid, and his absurdities and misfortunes gave the Estates opportunity to strengthen their constitutional position.
Of course, if ransom was his game...