What is William I (Count of Holland)?
[[File:Serie Gravenportretten - Haarlem - 20096022 - RCE.jpg|thumb|William on the right ]] '''William I''' (c. 1167 – 4 February 1222) was [[count of Holland]] from 1203 to 1222. He was the younger son of [[Floris III]] and [[Ada of Huntingdon]]. [[Category:1160s births]] [[Category:1222 deaths]] [[Category:Counts of Holland]] {{bio-stub}}