This is a silly toy for exploring the genealogy of the monarchs of England
Mary of Hungary and Charles II of Naples are 7th cousins once removed
Most recent common ancestors:
Grand Prince Yaroslav I of Kiev
Ingegerd Olofsdotter
Mary of Hungary's great great great great great great grand parent
Charles II of Naples's great great great 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).