Hundred in the County of Sussex
- Welesmere 1086 DB
- Whalesbon(e) 1248 Ass 1316 FA 1332 SR 1397 IpmR
- Wallesbon 1262 Ass
- Walesbon(e) 1265 Misc 1279 Ass 1327 SR
- Whal(l)isbon 1288 Ass
This hundred derives its name from the stream later known as Wellsbourne (SAC 16, 247), a 'winterbourne' which at times flows down from Patcham, floods the London road between Preston and Patcham and of old debouched near Pool Valley infra 292. The burna may have formed a mere at one time.(See further E. A. Martin in The South -Eastern Naturalist 1915, pp. 39–50. For the first element v. Whalesbeech infra 329.Another name for the hundred seems to have been Preston, for in DB Patcham is said to be in the hundred of Prestetune . In 1166 (P) we hear speak also of a hundred of Pacheham .