Just outside Kruibeke on the road to Burcht you will find on your right side castle Altena. The castle was built in the 14th century. It was remodeled in 1368 and in 1380 it was under siege by the Gentenaars but Mark Van Schoonvelde defended the castle with much bravery. The castle that you can see now was built in 1594 ten years after a fire destroyed the first castle. The family Lanfranchy lived in the castle until 1850 after that it became property of E. P. Filip, knight le Boucq de Beaudignies. Viscount Julius le Boucq de Beaudignies enlarged and restored the castle in 1878.