Casa de la Cultura Miguel Hernández de Rosal de la Frontera Curiosity · Rosal de la Frontera, Sierra de Huelva, Huelva Image of Rosal de la Frontera, not of the place itself. The poet Miguel Hernández was imprisoned in Rosal de la Frontera in 1939; his cell is preserved today as part of the Casa de la Cultura named after him. 1939 Photo: 19Tarrestnom65 (CC BY-SA 4.0) What to see and do in Rosal de la Frontera