Router

interface RouterProps extends SuspenseRouterProps {
    staticContext?: RouterContextInterface;
}

interface RouterContextInterface {
    basename: string;
    location: Location;
    navigationType: Action;
    isEqualToCurrentPathname: (to: To) => boolean;
    createLink: (to: To) => Path;
    isStaticContext: boolean;
    statusCode?: number;
    url?: string;
}

<Router> is the low-level interface that is shared by all router components (like <SuspenseRouter> and <StaticRouter>). In terms of React, <Router> is a context provider that supplies routing information to the rest of the app (HistoryContext, RouterContext and LocationContext are declared here).

You probably never need to render a <Router> manually. Instead, you should use one of the higher-level routers depending on your environment. You only ever need one router in a given app.