The personal-name stock of medieval Sweden is quite well known to us, but the individuals who appear in our sources naturally make up only a small proportion of the people living in the Middle Ages. A study of personal-name specifics in place-names formed in medieval times, in this case names in -bodha, -bol and -bordh in Uppland, can provide important additional information. In 333 place-names combining these final elements with personal names (not including what are assumed to be bynames), a total of 184 different personal names have been identified. It has thus been possible to document a number of personal names that are poorly represented, or not found at all, in other medieval sources from Uppland or the rest of Sweden.