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 Wallin died in 1999.
Sigurd Björling died in 1983.
Sigurd Wathne died in 1942.
Sigurd Østrem died in 1954.
Sigurd Abel died in 1873.
Sigurd Grieg died in 1973.
Sigurd Høgaas died in 1969.
Sigurd Moen died in 1967.
Sigurd Swane died in 1973.