The Council of Europe Convention on Preventing and Combating Violence Against Women and Domestic Violence, better known as the Istanbul Convention, is a human rights treaty of the Council of Europe opposing violence against women and domestic violence which was opened for signature on 11 May 2011, in Istanbul, Turkey. The convention aims at prevention of violence, victim protection and to end the impunity of perpetrators.

The Bulgarian Socialist Party, also known as The Centenarian, is a centre-left, social democratic political party in Bulgaria. The BSP is a member of the Socialist International, Party of European Socialists, and Progressive Alliance. Although founded in 1990 in its modern form, it traces its political heritage back to the founding of the BRSDP in 1891. It is also Bulgaria's largest party by membership numbers.