Select objects based on value of variable in object using jq

I have the following json file:

{"FOO": {"name": "Donald","location": "Stockholm"    },"BAR": {"name": "Walt","location": "Stockholm"    },"BAZ": {"name": "Jack","location": "Whereever"    }}

I am using jq and want to get the "name" elements of the objects where 'location' is 'Stockholm'.

I know I can get all names by

cat json | jq .[] | jq ."name""Jack""Walt""Donald"

But I can't figure out how to print only certain objects, given the value of a sub key (here: "location" : "Stockholm").