 Complete the following phrase:  Members of the family remained present in the political life of Wallachia throughout the 18th and early 19th centuries, and were seated in the Divan among the few pro-Russian boyar families. Ban Grigore Brâncoveanu was the leader of the regency council after the death of Prince Alexander Soutzos in 1821  he approached the nationalist leader of Oltenian pandurs, Tudor Vladimirescu, in an attempt to block Scarlat Callimachis ascension to the throne, thus providing the context for the 