Finding out recipients of Papal awards ca 1870

[kimj]

I have an unusual problem for myself. I have stumble across a story about a Swede who claims to be a Papal warhero in about 1870. Supposedly awarded with order of St Gregory the great, order of St Sylvester and a neckworn medal Benemeriti. As you can see quite a handful. Are there any available lists to confirm him as a Papal knight? Or call him out as a liar. I have been in contact with the secret archive in the Vatican but I'd like some phaleristic expertise in the matter. All help greatly appreciated.

/Kim