The relocation of Briviesca by Blanca de Portugal Historical milestone · Briviesca, La Bureba, Burgos Image of Briviesca, not of the place itself. The infanta Blanca of Portugal bought the town on 27 September 1305 and decided to bring it down from the hill to the plain with a deliberate layout of two axes crossing at the Plaza Mayor. 27 de septiembre de 1305 Photo: Zarateman (CC0) What to see and do in Briviesca