I'll give it a shot, but there are some parts that are difficult for me, so I may put some parts in < angle brackets > if I'm unsure or guessing, and may leave some of my own inline comments in [ brackets ].

- 87 - Department of the third <ministry> of Castiglione third comune of Castelgoffredo the day 20 December [here they used a roman X for 10 which is dieci and tied to dicembre (december) residually from when the calendar had 10 months), so they wrote Xembre for dicembre] 1808 at the hours 11 of the morning came to this office of the Civil State by way of Luigi Lodi of age 32, merchant, native and resident of this commune of Castelgoffredo, to the undersigned official of the civil state, referred to the house marked with the house number 12 where he has recognized the body of Giovanni Paolo Lodi, who died in the said house on the day 19 December 1808 at 4 PM at the age of 20 days. Witnesses to the recognition of the body were the said Luigi Lodi, father of the deceased, and Federico Lodi <avo> of the said deceased and of age 62 <unknown> domiciled as above. These witnesses jointly declared to me that the said deceased Giovanni Paolo Lodi was child of Luigi Lodi and Catterina Zaniboni, domiciled per the above and of profession of attendant to the affairs of the family. [The rest is standard statement of reading of relevant law to witnesses and the signing of the witnesses]

Not perfect, but hopefully has all the important parts you wanted.

@SantaNinfa

Thanks for that added info on the term avo.

@Mark83614

Hi Mark - glad to help.

Now you can slowly search forward and find Federico's death record which should blow it wide open for you.