Licensed stallion for Trakehners
Excellent horse, but his grey color made him unusable. So the French government prompted by the cavalry's dislike of the color grey sold him to the state stud in Poland in 1923 where he was used at the Janow State Stud.
Burgas OA was the sire of 5 purebred Arabian foals in France and 4 in Poland
References: AHA; 1991 Book - The Arabian Horse Families of Poland 1790-1987 by Britta Fahlgren; Daughters of the Wind.org: 11-9-2008 Post - Photo of the day - Burgas by Edouard al-Dahdah; Trk-Base.com