The estate is located in the municipality of Sclafani Bagni in the province of Palermo on the island Sicily, It was founded in 1830. At that time, the two brothers Don Lucio and Don Carmelo Mastrogiovanni Tasca acquired the former Regaleali fief with around 1,200 hectares of land. The property was managed by Lucio Baron Tasca, who became the agricultural pioneer Sicily counts. Under the leadership of his grandson Count Tasca of Almerita (+1892), the wine from Regaleali became known far beyond the borders. His son Lucio Graf Tasca Bordonaro enlarged the property and tripled the vineyards. Owing to an agricultural reform, the property was finally reduced to 500 hectares. From 1957, Giuseppe Graf Tasca took over responsibility and devoted himself primarily to viticulture with numerous innovations. Today the company is managed by his son Conte Lucio Tasca. In 1999 a state-of-the-art wine cellar was put into operation. There are antique wall pools made of resin-coated cement, stainless steel tanks, and wooden barrels from Slavonia, Allier and Tronçais. The Barrels have a volume of 350 liters (compared to the usual 225).
The vineyards cover 500 hectares of vineyards. The oldest vineyard called "San Lucio" was created in 1959. It is the white wine varieties Catarratto Bianco. Chardonnay. Inzolia, Grecanico ( Garganega ) Sauvignon Blanc and Pinot Bianco ( Pinot Blanc ), as well as the red wine varieties Cabernet Sauvignon. Merlot. Nerello Mascalese. Nero d'Avola. Perricone, Pinot Nero ( Pinot Noir ) and Syrah cultured. However, another forty Italian, Greek, Spanish and French varieties are also being trialed. The vineyards are protected from the hot sirocco winds by three artificial lakes. The winery is best known for the IGT branded wine "Regaleali" (Royal). The “Regaleali Bianco” is blended from the varieties Inzolia, Catarratto and Sauvignon. The Rosso and Rosato variants are made from Perricone and Nero d'Avola. The top products are "Nozze d'Oro" (Inzolia and Sauvignon Blanc) and "Rosso del Conte" (predominantly Nero d'Avola). Around 2.3 million bottles of wine are produced annually. Around 40% is exported, mainly to Germany and the United States.