It was flooded by the Alarcón Reservoir, which underwent construction from 1946 to 1970 through the initiative of Valencian farmers who wanted to regulate the flow of the Júcar River.

As its economy relied on this resource, the use of water from the Gascas and Júcar for irrigation was strictly rationed for each plot of land.

Wife of Alfonso VIII of Castile, she held court for a time in the recently conquered city of Cuenca.

Since 2010, a yearly festival is held in Olmedilla de Alarcón on the first Saturday of August in honor of the inhabitants of Gascas and their descendants.

[1] This tradition originated with the inauguration of a monument on the shore of the reservoir at the point nearest the town, and is now sponsored by the officials of Olmedilla.