Background
His father Peter von Lair (died 1533) was a wool weaver.
His father Peter von Lair (died 1533) was a wool weaver.
He was educated at the University of Cologne.
His family moved to Siegburg during his childhood, and he adopted the name of this city. He became involved in the bookselling industry in the 1610s, initially in the service of Hans Beck. Siberch had two daughters from this marriage, Katharina and Baetzgen.
Siberch later moved to Cambridge, where he set up a printing press in 1520-1521, possibly through Richard Croke.