pobre, indigente
He is courageous, bold, honest, trustworthy, loyal.
A Pauper's grave is basically a cheap grave where poor people -commonly used in reference to musicians /artists who left this world with little money- are buried. A Pauper's grave in not a cheap...
A Begger
A pauper's oath is a sworn statement or oath by a person that he or she is completely destitute or a pauper, i.e. without any money or property