The Nesvizh-Kletsk-Olyka line was the most successful and was further divided into smaller family lines to maintain clarity and specificity of descent and the passing of titles. Since the 18th century, all Radziwiłł family members have been descendants of this line. Three sons of Mikołaj "the Black", Mikołaj Krzysztof "the Orphan", Albrycht, and Stanisław "the Pious", are said to be the progenitors of the three smaller branches. The branches are as follows: the Nesvizh line the older Kletsk line the Olyka line Possibly both the Olyka and older Kletsk lines became extinct, the former in 1656 and the latter in 1690. The direct descendant of the Nesvizh line, Dominik Hieronim's son, Aleksander Dominik, was born before his parents' marriage and formed the so-called Galician branch, which went extinct in 1938. The younger Kletsk line descends from Michał Hieronim, continued through his son Ludwik Mikolaj. The descendants of his other son, Antoni Henryk, formed the beginning of the so-called Ordynant branch. Other than the Ordynant branch, from the younger Kletsk line also descends the lesser titled branches of Szydłowiec and Połoneczka, as well as Dziatłava, Berdychiv, and Żyrmunów. The younger Kletsk line has continued into the present day. the Nesvizh line the Galician line the younger Kletsk line the Ordynant line the Szydłowiec-Połoneczka line the Dziatłava-Berdychiv-Żyrmunów line Coat of arms and motto Kristinas Astikas, ancestor of the Radziwiłł family, was among these who were granted and adopted the emblem known as Trąby after the Union of Horodło in 1413. This emblem later became the hereditary coat of arms of the Radziwiłłs. In 1518, Holy Roman Emperor Maximilian I created Mikalojus Radvila's son, Mikołaj, Reichsfürst ("Imperial Prince") of Goniądz and Meteliai after the Jagiellonian-Habsburg congress at Vienna. Mikołaj Radziwiłł also received an expanded, more solemn coat of arms: as princes of the Holy Roman Empire, the Radziwiłłs bore a black eagle, on whose breast is a shield with Trąby and other emblems. The family motto is "God advises us" (Polish: Bóg nam radzi, Belarusian: Бог нам раіць, Boh nam rajić). In 1547, Charles V, Holy Roman Emperor, created Mikołaj "the Black" and his brother, Jan, hereditary Reichsfürsten of Nesvizh and Olyka; their cousin Mikołaj "the Red" Radziwiłł was created Reichsfürst of Biržai and Dubingiai. The same year King Sigismund II Augustus of Poland married Barbara Radziwiłł and confirmed these titles in 1549. So high a title was rare among the szlachta (the