The Scottish historian and publicist Robert William Seton-Watson (1879 -1951) was only peripherally interested in the Bulgarians. He visited Bulgaria for the first time at the beginning of June 1913. The second time he visited Sofia in January 1915. The purpose of this trip was to gain Bulgaria's adherence to the Entente, or, at the least, to secure Bulgaria's benevolent neutrality. In the Serbo-Bulgarian conflict over Macedonia and in the Bulgarian-Romanian conflict over southern Dobrudja, Seton-Watson was on the Serbian and Romanian sides. During World War I he also resolutely opposed attempts to conclude a separate peace between Great Britain and Bulgaria. On the other hand, in the territorial conflict between Bulgaria and Greece Seton-Watson expressed understanding for some of Bulgaria's claims, particularly in the case of Bulgaria's claim for access to the Aegean Sea. The following study includes documents as well as a few of Seton-Watson's published articles concerning his relationship with Bulgaria from the papers of Seton-Watson in the archives of the School of Slavonic and East European Studies of the University of London.