Adelaide of Guelders

Adelaide of Guelders ( – 1218) was the daughter of Count Otto I of Guelders and his wife, Richardis, the daughter of Duke Otto I of Bavaria and Agnes of Loon. Also known as Adelaide of Bellich or Alice of Guelders.
In 1197 in Stavoren, she married Count William I of Holland. They had five children:
Adelaide died in 1218, while her husband was away on the Fifth Crusade. She was buried in Rijnsburg Abbey.