diff --git a/web/src/authorities/authorities-page.tsx b/web/src/authorities/authorities-page.tsx
index 19bd9f8..37c2b5f 100644
--- a/web/src/authorities/authorities-page.tsx
+++ b/web/src/authorities/authorities-page.tsx
@@ -6,9 +6,13 @@ import type { components } from "../api/schema";
 import { useAuthorities, useCreateAuthority } from "../api/queries";
 import { LabelEditor } from "../components/label-editor";
 import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
 import { PageTitle } from "@/components/ui/page-title";
 import { ListSkeleton } from "@/components/ui/skeletons";
 import { AuthorityRow } from "./authority-row";
+import { byLabel } from "../lib/sort";
+import { labelText } from "../lib/labels";
 import { useDocumentTitle } from "../lib/use-document-title";
 import { useBreadcrumb } from "../shell/use-breadcrumb";
 
@@ -29,6 +33,8 @@ export function AuthoritiesPage() {
 
   const [labels, setLabels] = useState<LabelInput[]>([]);
   const [error, setError] = useState(false);
+  const [filter, setFilter] = useState("");
+  const [uri, setUri] = useState("");
 
   useDocumentTitle(t("nav.authorities"));
   useBreadcrumb([{ label: t("nav.authorities") }]);
@@ -45,8 +51,13 @@ export function AuthoritiesPage() {
 
     setError(false);
     create.mutate(
-      { kind: kind as string, external_uri: null, labels },
-      { onSuccess: () => setLabels([]) },
+      { kind: kind as string, external_uri: uri.trim() || null, labels },
+      {
+        onSuccess: () => {
+          setLabels([]);
+          setUri("");
+        },
+      },
     );
   };
 
@@ -69,20 +80,41 @@ export function AuthoritiesPage() {
         ))}
       </div>
 
+      <div className="mb-3">
+        <Input
+          aria-label={t("common.filter")}
+          placeholder={t("common.filter")}
+          value={filter}
+          onChange={(e) => setFilter(e.target.value)}
+        />
+      </div>
+
       {isLoading ? (
         <ListSkeleton className="mb-4" rows={5} />
       ) : (
-        <ul className="mb-4">
-          {isError && (
-            <li className="text-sm text-destructive">{t("authorities.loadError")}</li>
-          )}
-          {!isError && authorities?.length === 0 && (
-            <li className="text-sm text-muted-foreground">{t("authorities.empty")}</li>
-          )}
-          {authorities?.map((a) => (
-            <AuthorityRow key={a.id} authority={a} kind={currentKind} lang={lang} />
-          ))}
-        </ul>
+        (() => {
+          const q = filter.trim().toLowerCase();
+          const rows = [...(authorities ?? [])]
+            .filter((a) => !q || labelText(a.labels, lang).toLowerCase().includes(q))
+            .sort(byLabel(lang));
+
+          return (
+            <ul className="mb-4">
+              {isError && (
+                <li className="text-sm text-destructive">{t("authorities.loadError")}</li>
+              )}
+              {!isError && authorities?.length === 0 && (
+                <li className="text-sm text-muted-foreground">{t("authorities.empty")}</li>
+              )}
+              {!isError && authorities && authorities.length > 0 && rows.length === 0 && (
+                <li className="text-sm text-muted-foreground">{t("common.noMatches")}</li>
+              )}
+              {rows.map((a) => (
+                <AuthorityRow key={a.id} authority={a} kind={currentKind} lang={lang} />
+              ))}
+            </ul>
+          );
+        })()
       )}
 
       <form onSubmit={onCreate} className="space-y-2 border-t pt-3">
@@ -92,6 +124,17 @@ export function AuthoritiesPage() {
 
         <LabelEditor value={labels} onChange={setLabels} />
 
+        <div className="space-y-1">
+          <Label htmlFor="auth-create-uri">{t("labels.externalUri")}</Label>
+          <Input
+            id="auth-create-uri"
+            type="url"
+            placeholder={t("labels.uriPlaceholder")}
+            value={uri}
+            onChange={(e) => setUri(e.target.value)}
+          />
+        </div>
+
         {error && (
           <p role="alert" className="text-xs text-destructive">
             {t("form.required")}
diff --git a/web/src/authorities/authorities.test.tsx b/web/src/authorities/authorities.test.tsx
index fc2ffb8..d718752 100644
--- a/web/src/authorities/authorities.test.tsx
+++ b/web/src/authorities/authorities.test.tsx
@@ -69,3 +69,69 @@ test("unknown kind redirects to person list", async () => {
   renderApp(tree(), { route: "/authorities/banana" });
   expect(await screen.findByText("Ada Lovelace")).toBeInTheDocument();
 });
+
+test("authorities render sorted by label", async () => {
+  server.use(
+    http.get("/api/admin/authorities", () =>
+      HttpResponse.json([
+        { id: "a-zoe", kind: "person", external_uri: null, labels: [{ lang: "en", label: "Zoe" }] },
+        { id: "a-adam", kind: "person", external_uri: null, labels: [{ lang: "en", label: "Adam" }] },
+      ]),
+    ),
+  );
+  renderApp(tree(), { route: "/authorities/person" });
+  expect(await screen.findByText("Adam")).toBeInTheDocument();
+  const items = screen.getAllByRole("listitem");
+  const texts = items.map((item) => item.textContent ?? "");
+  const adam = texts.findIndex((text) => text.includes("Adam"));
+  const zoe = texts.findIndex((text) => text.includes("Zoe"));
+  expect(adam).toBeLessThan(zoe);
+});
+
+test("filter narrows the authority list", async () => {
+  server.use(
+    http.get("/api/admin/authorities", () =>
+      HttpResponse.json([
+        { id: "a-ada", kind: "person", external_uri: null, labels: [{ lang: "en", label: "Ada Lovelace" }] },
+        { id: "a-grace", kind: "person", external_uri: null, labels: [{ lang: "en", label: "Grace Hopper" }] },
+      ]),
+    ),
+  );
+  renderApp(tree(), { route: "/authorities/person" });
+  expect(await screen.findByText("Ada Lovelace")).toBeInTheDocument();
+  expect(screen.getByText("Grace Hopper")).toBeInTheDocument();
+  await userEvent.type(screen.getByRole("textbox", { name: /filter/i }), "grace");
+  expect(screen.getByText("Grace Hopper")).toBeInTheDocument();
+  expect(screen.queryByText("Ada Lovelace")).not.toBeInTheDocument();
+});
+
+test("create posts the entered external_uri", async () => {
+  let body: unknown;
+  server.use(
+    http.post("/api/admin/authorities", async ({ request }) => {
+      body = await request.json();
+      return HttpResponse.json({ id: "a-c" }, { status: 201 });
+    }),
+  );
+  renderApp(tree(), { route: "/authorities/person" });
+  expect(await screen.findByText("Ada Lovelace")).toBeInTheDocument();
+  await userEvent.type(screen.getByLabelText(/^label$/i), "Carl von Linné");
+  await userEvent.type(screen.getByLabelText(/external uri/i), "https://viaf.org/456");
+  await userEvent.click(screen.getByRole("button", { name: /create/i }));
+  await waitFor(() =>
+    expect((body as { external_uri: string })?.external_uri).toBe("https://viaf.org/456"),
+  );
+});
+
+test("read row shows its external_uri as a link", async () => {
+  server.use(
+    http.get("/api/admin/authorities", () =>
+      HttpResponse.json([
+        { id: "a-ada", kind: "person", external_uri: "https://viaf.org/123", labels: [{ lang: "en", label: "Ada Lovelace" }] },
+      ]),
+    ),
+  );
+  renderApp(tree(), { route: "/authorities/person" });
+  expect(await screen.findByText("Ada Lovelace")).toBeInTheDocument();
+  expect(screen.getByRole("link", { name: /viaf\.org/ })).toBeInTheDocument();
+});
diff --git a/web/src/authorities/authority-row.tsx b/web/src/authorities/authority-row.tsx
index fe06c1b..a9a5f60 100644
--- a/web/src/authorities/authority-row.tsx
+++ b/web/src/authorities/authority-row.tsx
@@ -5,6 +5,7 @@ import type { components } from "../api/schema";
 import { useUpdateAuthority, useDeleteAuthority } from "../api/queries";
 import { LabelEditor } from "../components/label-editor";
 import { DeleteConfirmDialog } from "../components/delete-confirm-dialog";
+import { ExternalUriLink } from "../components/external-uri-link";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
@@ -29,7 +30,13 @@ export function AuthorityRow({ authority, kind, lang }: { authority: AuthorityVi
         <LabelEditor value={labels} onChange={setLabels} />
         <div className="space-y-1">
           <Label htmlFor={`auth-uri-${authority.id}`}>{t("labels.externalUri")}</Label>
-          <Input id={`auth-uri-${authority.id}`} value={uri} onChange={(e) => setUri(e.target.value)} />
+          <Input
+            id={`auth-uri-${authority.id}`}
+            type="url"
+            placeholder={t("labels.uriPlaceholder")}
+            value={uri}
+            onChange={(e) => setUri(e.target.value)}
+          />
         </div>
         <div className="flex gap-2">
           <Button
@@ -55,7 +62,10 @@ export function AuthorityRow({ authority, kind, lang }: { authority: AuthorityVi
 
   return (
     <li className="flex items-center gap-2 border-b py-1 text-sm">
-      <span className="flex-1">{labelText(authority.labels, lang)}</span>
+      <div className="flex-1">
+        <div>{labelText(authority.labels, lang)}</div>
+        {authority.external_uri && <ExternalUriLink uri={authority.external_uri} />}
+      </div>
       <Button
         type="button"
         variant="ghost"