Complex sentence: Friedrich August Ferdinand Christian Went ForMemRS (June 18,1863, Amsterdam--July 24,1935, Wassenaar) was a Dutch botanist, professor of botany and director of the Botanical Garden at the University of Utrecht.
Split into simpler sentences: Friedrich August Ferdinand Christian Went ForMemRS (June 18,1863--July 24,1935) was a Dutch botanist. He was professor of botany and director of the Botanical Garden at the University of Utrecht.