What's the difference between patrician and patriciate?

Patrician

Definition:

(a.) Of or pertaining to the Roman patres (fathers) or senators, or patricians.
(a.) Of, pertaining to, or appropriate to, a person of high birth; noble; not plebeian.
(n.) Originally, a member of any of the families constituting the populus Romanus, or body of Roman citizens, before the development of the plebeian order; later, one who, by right of birth or by special privilege conferred, belonged to the nobility.
(n.) A person of high birth; a nobleman.
(n.) One familiar with the works of the Christian Fathers; one versed in patristic lore.

Example Sentences:

(1) Yet unlike his fellow ex-Bullingdon men and Tory patricians, Cameron and London mayor Boris Johnson, Osborne does not make a consistent effort to play down his privilege or make it endearing.
(2) There must have been people who told him he was too patrician, too intelligent, as well as too old to break through in America.
(3) These patrician warnings that Corbyn only serves to drag Labour backwards serve to make me, as a young voter, feel patronised and unwanted.
(4) Most crucial of all, the patrician Tory moderates were diluted and eventually driven from power.
(5) And producers have given up on the [old BBC] patrician thing, the vision thing.
(6) This second population segment lived between the 12th and 18th century and belonged to a lower social class than the patricians from Worb.
(7) But, disliking the patrician RADA accents, she set off for America by walking to Liverpool.
(8) As his friends have been quick to point out, it was an outcome that reflected well on Profumo's patrician sense of duty and decency: few modern politicians would have the courage to follow his example.
(9) --In the last quarter of the nineteenth century, Lausanne had to assert its own position between the patrician power of Bern, meanwhile elevated to federal capital, and industrious Geneva.
(10) It would be lazy and unreasonable to brand the 6,200 or so voting Academy members as bigots, yet their choices – and the choices made available to them – are shaped by a largely white, patrician hegemony in Hollywood’s executive suites.
(11) Following a crushing 61 to 20 defeat in the upper house, she will be replaced for the remaining two years and four months of her term by Michel Temer, a centre-right patrician who was among the leaders of the campaign against his former running mate .
(12) That may have been more indicative of a clunky attempt to fuse the supposed cost of living crisis with recent events than any deep thought but still, to a lot of people it will have sounded like a patrician voice, apparently unaware that working-class people think about much more than their own lot and have just as strong feelings about the state and democracy as the residents of upscale neighbourhoods in London.
(13) She recalls one lunch with a literary editor of the Times who "got there and said [she puts on a patrician drawl]: 'I told all the girls in the office I'm going out with a Virago today!'
(14) In Le Carré’s book Burr was a patrician gent in the mould of George Smiley.
(15) There are many reasons why this will no longer wash. Those days of deference to patrician authority are over, and probably for the better.
(16) One critic shrewdly observed that Robinson exemplified the meritocratic arrogance that had replaced the patrician version.
(17) Though both are gaffe-prone, Eurosceptic populists, quietly scornful of Cameron's patrician reserve, Hutchings's fiery brand makes Johnson's sound quite thoughtful.
(18) For Hoggart, humane reading and humane education and humane culture and society should be open to everyone, and he deeply deplored those who saw themselves as privileged, not least the patrician William Rees-Mogg who, as chairman of the Arts Council, took it for granted that his journeys from London to his Somerset home and back should be provided by an Arts Council-funded chauffeur-driven car.
(19) But he enjoys the advantage of incumbency and a patrician-like reputation in Colorado.
(20) Cameron, who cultivates an image of middle class normality, will be horrified at the way the episode links him to a lethal cocktail of urban journalistic cynicism, patrician country pursuits, police corruption and Downing Street evasion.