Here are examples of the word/phrase "stoutheartedly" used in a sentence and paraphrased in a sentence...
There was at least one person who was willing to stoutheartedly step up to the plate.
There was at least one person who was willing to bravely step up to the plate.
The paladins fought stoutheartedly and with honor.
The paladins fought courageously and with honor.
Other Examples...