This is a silly toy for exploring the genealogy of the monarchs of England
Richeza of Poland and Alfonso VII of Leon and Castile are 5th cousins once removed
Most recent common ancestors:
William III, Duke of Aquitaine
Gerloc
Richeza of Poland's great great great great great grand parent
Alfonso VII of Leon and Castile's great great great 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).