Over the next few years, Rondel moved to various cities while maintaining his studio in New York, including Boston; South Malden, Massachusetts; and Poughkeepsie, New York. He also took extended trips to Europe in 1862 and San Francisco in 1875.[1][4] He moved to Poughkeepsie by January 1862 and began teaching art to female students there, holding the position of professor of painting at the Cottage Hill Seminary.[9] While there, he was commissioned by the merchant Matthew Vassar to paint a series of works depicting three of Vassar's homes, two of which were located in Poughkeepsie.[4][9] He also befriended the painter Caroline Morgan Clowes there, whom he mentored and collaborated with up until the later years of his life.[9]
View of City Island
Rondel returned to New York City in 1868, where he continued to paint and exhibit his works, before relocating to New Rochelle, New York, in 1871.[1][4] By 1892, Rondel had moved to Philadelphia, where he died and was buried in November of that year.[3][9] He was eulogized in the Poughkeepsie Daily Eagle on December 1, with his obituary reporting that "his paintings are held in high repute".[9] Rondel's son, Fredrick Rondel Jr., also became an artist.[10]