Namesakes
Danish Kings and Queens:
5 kings
King Knud II the Great (a.k.a. Canute) 1018-1035 
King Knud III the Hardy (a.k.a. Canute) 1035-1042
King Knud IV the Holy (a.k.a. Canute) 1080-1086
King Knud V Magnussen (a.k.a. Canute) 1146-1157
King Knud VI (a.k.a. Canute) 1182-1202
English and British Kings and Queens:
2 kings
King Canute the Great 1016-1035
King Harthacnut (a.k.a. Canute) 1040-1042
Norwegian Kings and Queens:
1 king
King Knut the Great (a.k.a. Canute) 1028-1035
Saints:
2 saints
Saint Canute IV of Denmark 1040-1086
Saint Canute Lavard 1096-1131
Swedish Kings and Queens:
2 kings
King Knut I (a.k.a. Canute) 1167-1196
King Knut II the Long (a.k.a. Canute) 1229-1234