This is a silly toy for exploring the genealogy of the monarchs of England
Catherine of Bohemia and Rudolf IV, Duke of Austria are 2nd cousins once removed
Most recent common ancestors:
Gertrude of Hohenburg
King Rudolf I of Germany
Catherine of Bohemia's great great grand parent
Rudolf IV, Duke of Austria's great grand parent

This somewhat silly thing made by
naath
Thanks to chiark for hosting this
Information sourced from wikipedia
All errors in transcription are mine.
Reports of errors, or ideas of interesting questions to ask
my database by email to naath@chiark.greenend.org.uk
(omissions of people are largely because I haven't got to them yet).