Boguslav m. Slavic bog, bóg, boh, boż 'rich; a god' + Slavic sława, slava 'glory, fame'.

Czech Republic

Latin

● 1337 Bohuzlai (gen) Rössler1 29; 1347x1382 Bohuslaus (nom) LDFPUP1 p. 1; 1350 Bohuslaus (nom) chlumecky 162; 1351 Bohuslaum (acc) ibid. 45; 1353 Bohuslao (abl) ibid. 60; 1358 Bohuslaum (acc) ibid. 431, p. 38, Bohuslaus (nom) ibid. 227, p. 31; 1360 Bohuslaus (nom) ibid. 482, p. 40; 1372 Bohuslaus (nom) LDFPUP1 p. 28; 1385 Bohuslao (abl) ibid. p. 3

◑ 1348 Buzco (nom) chlumecky 7; 1349 Busco (nom) ibid. 22, Busconi (dat) ibid. 53; 1350 Busco (nom) ibid. 187; 1351 Buzco (nom) ibid. 45; 1353 Buzconi (dat) ibid. 125; 1355 Buzo (nom) ibid. 86

Middle High German

● c1339 Bohusslai (gen) Rössler1 93, Busslaw (nom) ibid. 93; 1360 Bohuslaus (nom) ibid. 57; 1361 Busslaw (nom) ibid. 82; 1373 Busslaw (nom) ibid. 102

◑ 1373 Busko (nom) Rössler1 102

Germany

Latin

● 1250 Boguzlaus (nom) UrkBrzeg I; 1283 Buguzlaus (nom) UrkMeck1 no. LXXX; 1292 Buguzlaus (nom) ibid. no. LXXXIX

Poland

Latin

● 1228 Boguslaus (nom) hennes-vol1 p. 81; 1234 boguzlao (abl) CDT1 XIV