Monument to the Tsar Liberator
Ferdinand also attended the monument's inauguration on 30 August 1907 together with his sons Boris and Kiril , Grand Duke Vladimir Alexandrovich of Russia , son of Alexander II , together with his wife and his son , as well as other notable figures . 
<triplet> Boris <subj> Kiril <obj> sibling <triplet> Kiril <subj> Boris <obj> sibling