This is a written charm that was carried by King Charles I, written by Pope Leo IX.
"Who that beareth it upon him shall not dread his enemies, to be overcome, nor with no manner of poison be hurt, nor in no need misfortune, nor with no thunder he shall not be smitten nor lightning, or in no fire be burnt soddainly, nor in no water be drowned. Nor he shall not die without shrift, nor with theeves to be taken. Also he shall have no wrong neuther of Lord or Lady. This be in the names of God and Christ. + Messias + Sother + Emmannell + Saibaoth +"
(+ is the symbol of the Cross).