Again hoping to be made Caimacam or Prince, Cantacuzino also welcomed Omar Pasha and lent him a luxurious carriage.
On August 31, Dervish Ibrahim Pasha partly satisfied Cantacuzino's request, appointing him and Constantin Năsturel-Herescu to lead a provisional government which was to handle affairs until Știrbei's promised return.
The new Council also included Ion Cantacuzino and another young boyar, Ioan Alecu Filipescu-Vulpache.
According to the memoirs of Sadyk Pasha, the new regime also involved Alexandru Ghica and Câmpineanu; it was primarily pro-Ottoman, fearing Russia and, "above all", Austria.
Grigore Cantacuzino was included in this administrative apparatus: with Sadyk and Carol Davila, he took measures to control the cholera epidemic, earning kudos from the Ottoman overseers.

Constantin Cantacuzino and other "old boyars" found themselves tactically allied with Heliade and the Golescus in their repeated attempts to prevent Știrbei's return from Austria.
He finally resigned on September 23, when Știrbei appointed an entirely new cabinet.
During the following years, he was mainly noted as a patron of the arts.
In 1855, he sponsored a debut play by lawyer Ioan Em.
Bujoreanu, Fata supt epitrop ("Chaperoned Girl").
Probably at that stage, he commissioned a calligraphic and heraldic copy of his family's genealogy, originally written in the late 18th century by his ancestor, Mihai Cantacuzino; it remained one of the few surviving copies of the work.
An 1861 notice in O Theatis newspaper described him as "one of the most constant and enthusiastic spectators of [Bucharest's] Greek theater."

In late 1856, as Alexandru Ghica presided upon a new regency, the former Caimacam briefly returned as minister.
After an initial attempt to get the throne for himself, Ion Cantacuzino rallied with the Știbeist party, which now sought to effect union between Wallachia and Moldavia.
A member of the Ad hoc Divan following the election of 1857, he helped to draft its main resolutions.
In 1858, he was Știrbei's envoy to Iași, allegedly gathering support for the unionist cause.
A Cantacuzino faction still existed ahead of the January 1859 election, but was undecided between supporting three conservative candidates for the throne: Bibescu, Știbei, and Alexandru Ghica.
Eventually, on January 12, Constantin put himself up as a candidate—although, as historian Nicolae Iorga notes, his chances of winning were minuscule.
Twelve days later, progressives imposed a win for their own surprise candidate, Alexandru Ioan Cuza, a Moldavian.
Also a member of the Divan (or Elective Assembly), Constantin validated the election and signed the address which sought to obtain Cuza's recognition as Domnitor.
Some of his 1848 enemies, including Rosetti and Nicolae Golescu, also endorsed that act.

The former Caimacam finally left Wallachia and settled in Paris, dying in exile in 1877.
He was buried next to his wife (died 1839) and parents at Saint John the Great Church in Bucharest.
When this building was demolished, their remains were reburied at Bellu cemetery, Plot 15.
The Caimacam was survived by all his four children.
Ion remained especially prominent as a minister of the United Principalities, and from 1863 one of Cuza's leading conservative opponents; his youngest brother, Adolf Cantacuzino (married to Ecaterina Iarca), was the very first President of the Court of Appeals.
Having returned to Bucharest, Maria Mavros was noted for her philanthropic work during the Romanian War of Independence.

In 1857, Constantin and Zoe's only daughter, Alexandra or Alexandrina, had married General Gheorghe Manu, who later became Prime Minister of the Romanian Kingdom.
She died in 1916.
While Ion and Maria Cantacuzino had nine children together, Grigore died a celibate in 1903.
Of the Caimacam's granddaughters, sisters Zoe and Sevastia became wives of two other Prime Ministers: the former married Dimitrie Sturdza, the latter Petre P. Carp.
Also a Prime Minister, Gheorghe Grigore Cantacuzino was Constantin's nephew.

Other descendants of the Caimacam included two famous grands
Again hoping to be made Caimacam or Prince, Cantacuzino also welcomed Omar Pasha and lent him a luxurious carriage. On August 31, Dervish Ibrahim Pasha partly satisfied Cantacuzino's request, appointing him and Constantin Năsturel-Herescu to lead a provisional government which was to handle affairs until Știrbei's promised return. The new Council also included Ion Cantacuzino and another young boyar, Ioan Alecu Filipescu-Vulpache. According to the memoirs of Sadyk Pasha, the new regime also involved Alexandru Ghica and Câmpineanu; it was primarily pro-Ottoman, fearing Russia and, "above all", Austria. Grigore Cantacuzino was included in this administrative apparatus: with Sadyk and Carol Davila, he took measures to control the cholera epidemic, earning kudos from the Ottoman overseers.
Constantin Cantacuzino and other "old boyars" found themselves tactically allied with Heliade and the Golescus in their repeated attempts to prevent Știrbei's return from Austria. He finally resigned on September 23, when Știrbei appointed an entirely new cabinet. During the following years, he was mainly noted as a patron of the arts. In 1855, he sponsored a debut play by lawyer Ioan Em. Bujoreanu, Fata supt epitrop ("Chaperoned Girl"). Probably at that stage, he commissioned a calligraphic and heraldic copy of his family's genealogy, originally written in the late 18th century by his ancestor, Mihai Cantacuzino; it remained one of the few surviving copies of the work. An 1861 notice in O Theatis newspaper described him as "one of the most constant and enthusiastic spectators of [Bucharest's] Greek theater."
In late 1856, as Alexandru Ghica presided upon a new regency, the former Caimacam briefly returned as minister. After an initial attempt to get the throne for himself, Ion Cantacuzino rallied with the Știbeist party, which now sought to effect union between Wallachia and Moldavia. A member of the Ad hoc Divan following the election of 1857, he helped to draft its main resolutions. In 1858, he was Știrbei's envoy to Iași, allegedly gathering support for the unionist cause. A Cantacuzino faction still existed ahead of the January 1859 election, but was undecided between supporting three conservative candidates for the throne: Bibescu, Știbei, and Alexandru Ghica. Eventually, on January 12, Constantin put himself up as a candidate—although, as historian Nicolae Iorga notes, his chances of winning were minuscule. Twelve days later, progressives imposed a win for their own surprise candidate, Alexandru Ioan Cuza, a Moldavian. Also a member of the Divan (or Elective Assembly), Constantin validated the election and signed the address which sought to obtain Cuza's recognition as Domnitor. Some of his 1848 enemies, including Rosetti and Nicolae Golescu, also endorsed that act.
The former Caimacam finally left Wallachia and settled in Paris, dying in exile in 1877. He was buried next to his wife (died 1839) and parents at Saint John the Great Church in Bucharest. When this building was demolished, their remains were reburied at Bellu cemetery, Plot 15. The Caimacam was survived by all his four children. Ion remained especially prominent as a minister of the United Principalities, and from 1863 one of Cuza's leading conservative opponents; his youngest brother, Adolf Cantacuzino (married to Ecaterina Iarca), was the very first President of the Court of Appeals. Having returned to Bucharest, Maria Mavros was noted for her philanthropic work during the Romanian War of Independence.
In 1857, Constantin and Zoe's only daughter, Alexandra or Alexandrina, had married General Gheorghe Manu, who later became Prime Minister of the Romanian Kingdom. She died in 1916. While Ion and Maria Cantacuzino had nine children together, Grigore died a celibate in 1903. Of the Caimacam's granddaughters, sisters Zoe and Sevastia became wives of two other Prime Ministers: the former married Dimitrie Sturdza, the latter Petre P. Carp. Also a Prime Minister, Gheorghe Grigore Cantacuzino was Constantin's nephew.
Other descendants of the Caimacam included two famous grands
Constantin Cantacuzino (died 1877)