Genappe  Genappe is a Walloon municipality located in the Belgian province of Walloon Brabant. On 1 January 2006 Genappe had a total population of 14,136. The total area is 89.57 km² which gives a population density of 158 inhabitants per km². Villages in the municipality of Genappe are:   "To be expanded"  Although his birthplace was probably Boulogne-sur-Mer, one 13th-century chronicler cites Baisy (now Baisy-Thy in Genappe), as the birthplace of Godfrey of Bouillon, the best-known leader of the First Crusade (1096-1099). The Genappe post-office opened before 1830. It used a postal code 48 with bars (before 1864), and 145 with points before 1870. BOUSVAL opened on 8 April 1880. Postal codes in 1969 (before the merger of municipalities in 1977):  - 1470 Genappe - 1471 Loupoigne - 1472 Vieux-Genappe  - 1473 Glabais - 1474 Ways - 1475 Baisy-Thy - 1476 Houtain-le-Val - 1488 Bousval.