I'm looking for a single word describing a person who lends money to dynasties or kingdoms in large amounts? who does not lend small amounts to anyone, hence they generally do not lend to individuals.
In most cases such people lend money for interest and against some guarantee like house, land, gold or something on those lines.
Most probably a word should be old and may or may not be in use today.
do we have any single word describing such a person?