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 Jørgensen died in 1929.
Sigurd Ibsen died in 1930.
Sigurd Smebye died in 1954.
Sigurd Grieg died in 1973.
Sigurd Swane died in 1973.
Sigurd Islandsmoen died in 1964.
Sigurd Køhn died in 2004.
Sigurd Maseng died in 1952.
Sigurd Asserson died in 1937.
Sigurd Gotaas died in 1944.