His son Jürgen (1575–1602/1612) was enrolled into Imperial nobility, granted untitled noble status with the von and the surname Rennenkampff by Holy Roman Emperor Rudolf II in 1602.

In 1728, Georg II von Rennenkampff was a Russian district court assessor of Pernau and was granted the title of Edler by Emperor Charles VI.

In 1909, Karl Otto Woldemar Magnus and his brother Eduard Ernst von Rennenkampff were enrolled into Prussian nobility by Emperor Wilhelm II.

The Baltic lines mainly consists of the Lutheran branches of the family: The Russian lines mainly consisted of the Orthodox converted branches, mainly because many worked in mainland Russia and many converted to Orthodoxy due to marriages with Russian women as there were very few German women in mainland Russia: The Rennenkampffs were huge landowners.

The coat of arms of the Edle Rennenkampff family of 1728 according to the Genealogical Handbook of the Baltic Knighthoods, Part Estonia by Baron Otto Magnus von Stackelberg: Divided by green and red, growing upward from the division and facing each other: on the right a gold lion with both hands holding swords straight ahead, on the left a silver-colored griffin holding a broad cut short sword, below single, two facing crowned helmets.