Sigurd Syr died in 1018.
In Harald Hardrada's family there was his three half brothers and his mother Asta Gudbrandsdatter and his father was Asta's second husband Sigurd Syr.
Hywel ap Syr Mathew died in 1581.
Sigurd Wathne died in 1942.
Sigurd Østrem died in 1954.
Sigurd Abel died in 1873.
Sigurd Manneråk died in 2003.
Sigurd Astrup died in 1949.
Sigurd Berge died in 2002.
Sigurd Bødtker died in 1928.
Sigurd Wallin died in 1999.
Sigurd Björling died in 1983.
Sigurd Winge died in 1970.