Hacienda Belvedere was a one thousand seven hundred cuerdas (±1,649 acre) plantation in Barrio Miradero of Cabo Rojo on the west coast of Puerto Rico overlooking the Caribbean Sea.  It was located  between the areas today known as Puerto Real and Joyuda.  It was the second largest plantation in the region after Hacienda Monserrate, located south of Boquerón Bay of which there are no remains left.  Hacienda Monserrate was named after Our Lady of Montserrat, the Patron Saint of Catalonia, and was established in the 19th century by prominent Puerto Rican physician and autonomist of Catalonian descent Dr. Juan Salvador Carbonell del Toro (1841-1907).  

According to José Ferreras Pagán in his 1902 book Biografía de las Riquezas de Puerto Rico, Hacienda Monserrate, located in Barrio Miradero about 1 km from the town of Cabo Rojo, was an eight hundred fifty acres estate of which about one hundred were used to grow sugarcane.  He states that it was established by Antonio Ramirez with an oxen driven mill and was acquired in 1856 by Juan Murray who installed a steam mill.  Ferreras Pagán also states that in 1870 it was acquired by the firm Patxot, Castelló & Co. comprised of Emilio Patxot Blanch (1841-1893) and Agustín Castelló Busquets (1832-1906) and was already in liquidation in 1887.  Ferreras Pagán also states in 1902 it was owned in its entirety by Castelló Busquets.  No mention is made by Ferreras Pagán of any ownership by Dr. Carbonell.

In his book, Ferreras Pagán states that "Hacienda Vervedere (sic) consisted of one thousand two hundred cuerdas of which some two hundred were used to grow sugarcane producing approximately five hundred hogsheds of raw sugar.  He states that it was located in Barrio Miradero 2km from the town of Cabo Rojo and was established by the Cabassa brothers who installed its machinery and a steam powered mill.  He also sates in 1902 it was owned by the Sucn. Vidal and was administered by the Vidal brothers which refers to the Sucn. Vidal, the estate of Joaquin Vidal Jiménez (1839-1900) consisting of his sons Juan (1873-1917) and Ignacio (1863-1938) Vidal Beiso.  

In the court case Monagas v. Vidal decided by the United States Court of Appeals, First Circuit on October 4, 1948 it is stated that in 1905 Juan A. Monagas Cedó (1875-1948), Ramiro Vidal Martinez (1866-1921) and Jose Arturo Monagas Cedó (1874-1915) established as owners in equal shares, an agricultural partnership called Monagas & Vidal for the cultivation of a one thousand four hundred seventy cuerdas farm known as the Belvedere Estate in Cabo Rojo.  The partnership had a ten year term but in April 1907 was extended for a term to expire June 30, 1924.  The case affirmed the liquidation of the partnership and the subsequent validity of Juan A. Monagas ownership as to ⅔ of the Belvedere Estate and the heirs of Jose Arturo Monagas as to ⅓ ownership.

According to an article by Wilfredo Santiago Valiente, during the WWI years his grandfather Manuel de Santiago leased Hacienda Borinquen in Cabo Rojo from Mateo Fajardo Cardona, but with the sugar price crisis of 1921 the hacienda went bankrupt.  This failure notwithstanding, in 1922 he entered into a twenty five year lease of Hacienda Belvedere who according to Santiago was founded in the early 19th Century by the Monagas family and later owned by the Vidal family.  At the expiration of the lease de Santiago could not afford to buy or lease the estate so he moved to the San Juan area.

No information could be found regarding a Vidal family ownership except for that of Ramiro Vidal Martinez stated above.  His relationship to Joaquin Vidal Jimenez could not be established.  It appears though that in 1940 lands were still used to grow sugarcane and ownership of the estate was in the name of Juan Monagas Cedó who is identified in the 1940 Census Records as a sugarcane farmer.