Sighard m. Old High German sigu 'victory' + Old Saxon hard, Old High German hart 'strong, hard'.

Austria

Latin

● 928 Sigihart (nom) UrkStyria 18; 930 Sigihart (nom) ibid. 19; 931 Sigihart (nom) ibid. 20; c1030 Sigihardo (dat) ibid. 48, Sigihardum (acc) ibid. 48, Sigihardus (nom) ibid. 48; 1074x1087 Sighart (nom) ibid. 77; c1075 Sigihart (nom) ibid. 78; c1115 Sighart (nom) ibid. 101; 1124 Sighardi (gen) ibid. 110, Sighardus (nom) ibid. 110; 1231 Sighardus (nom) UBEnns3 I

Czech Republic

Latin

● 1376 Sygardus (nom) LDFPUP1 p. 31; 1384 Seghardus (nom) ibid. p. 12; 1386 Seghehardum (acc) ibid. p. 3, Syardum (acc) ibid. p. 3

◑ 1384 Hardus (nom) LDFPUP1 p. 12

France

Latin

● c823 Sichardus (nom) irminon-vol2 9, Palatiolum; 1273 Sicardus (nom) RegToul-13thC p. 22; 1274 Cicardum (acc) ibid. p. 47, Sicardus (nom) ibid. p. 27; 1378 Sicardus (nom) hanquetvol1 2503

Middle French

● 1421 Sicart favier 1213

Germany

Latin

● 822x875 Sigardo (abl) TradCorb §115; 925 Sigihart (nom) UrkStyria 14

The Netherlands

Latin

● 850 Sigehard (nom) OrkGZ no. 41