The Battle of Wofla was fought on August 28, 1542 near Lake Ashenge in Wofla (or Ofla) in the modern Ethiopian Region of Tigray (previously part of Wollo; its incorporation into Tigray instead of Amhara is therefore disputed), between the Portuguese under Cristóvão da Gama and the forces of Imam Ahmad ibn Ibrahim al-Ghazi. Reinforced with a superiority not only in numbers but in firearms, Imam Ahmad was victorious and forced the Portuguese, along with Queen Sabla Wengel and her retinue, to flee their fortified encampment and leave their weapons behind.

• http://en.wikipedia.org/wiki/Battle of Wofla