Namesakes
Danish Kings and Queens:
3 kings
King Svend I Forkbeard (a.k.a. Sweyn) 986-1014 
King Svend II (a.k.a. Sweyn) 1047-1074
King Svend III Grathe (a.k.a. Sweyn) 1146-1157
King Sven Forkbeard (a.k.a. Sweyn) 1013-1014
Swedish Kings and Queens:
1 king
King Blot-Sven (a.k.a. Sweyn) 1084-1087