Spanish abbreviations

Pat Lowe

I am looking for a translation for this phrase from a memorial of a Catholic priest who lived 1680-1746

'En memoria eterna, El Yllmo. Sr. Dor. Dn. Salvador Bermúdez".

Yllmo. ??

Dor. ??

the rest I understand. 

Thanks

Pat

'

LauraVilla107

i'm thining Yllmo is "llamo" and Dor might be an abbreviated name such as Doroteo?

A Nelson

Yllmo. is an abbreviation for "ilustrisimo" or the most illustrious.