diff --git a/memento-note/components/structured-views/property-value-editor.tsx b/memento-note/components/structured-views/property-value-editor.tsx
index 387b049..fd76db6 100644
--- a/memento-note/components/structured-views/property-value-editor.tsx
+++ b/memento-note/components/structured-views/property-value-editor.tsx
@@ -1,10 +1,11 @@
 'use client'
 
-import { useEffect, useRef, useState } from 'react'
+import { useEffect, useMemo, useRef, useState } from 'react'
 import { cn } from '@/lib/utils'
 import { Popover, PopoverContent, PopoverTrigger } from '@/components/ui/popover'
 import { useLanguage } from '@/lib/i18n'
 import type { PropertyType, SchemaProperty } from '@/lib/structured-views/types'
+import { openNotePeek } from '@/lib/note-peek-sync'
 
 type PropertyValueEditorProps = {
   property: SchemaProperty
@@ -78,6 +79,8 @@ export function PropertyValueEditor({
           compact={compact}
         />
       )
+    case 'relation':
+      return <RelationEditor value={value as string | null} onChange={onChange} compact={compact} className={className} />
     default:
       return (
         <input
@@ -227,3 +230,123 @@ export function useDebouncedPropertySave(
 export function formatPropertyTypeLabel(type: PropertyType, t: (k: string) => string) {
   return t(`structuredViews.propertyTypes.${type}`)
 }
+
+function RelationEditor({
+  value,
+  onChange,
+  compact,
+  className,
+}: {
+  value: string | { id: string; title: string } | null
+  onChange: (v: unknown) => void
+  compact?: boolean
+  className?: string
+}) {
+  const { t } = useLanguage()
+  const [open, setOpen] = useState(false)
+  const [search, setSearch] = useState('')
+  const [results, setResults] = useState<Array<{ id: string; title: string | null }>>([])
+  const [loading, setLoading] = useState(false)
+
+  // Parse value into { id, title }
+  const parsed = useMemo(() => {
+    if (!value) return null
+    if (typeof value === 'object' && value.id) return value as { id: string; title: string }
+    if (typeof value === 'string') {
+      try {
+        const obj = JSON.parse(value)
+        if (obj.id && obj.title) return obj
+      } catch {}
+      return { id: value, title: value }
+    }
+    return null
+  }, [value])
+
+  // Fetch real title if we only have an ID (old data)
+  const [resolvedTitle, setResolvedTitle] = useState<string | null>(null)
+  useEffect(() => {
+    if (!parsed || parsed.title !== parsed.id) { setResolvedTitle(null); return }
+    fetch(`/api/notes?limit=100`)
+      .then(r => r.json())
+      .then(data => {
+        const note = data.data?.find((n: any) => n.id === parsed.id)
+        if (note) setResolvedTitle(note.title || t('notes.untitled'))
+      })
+      .catch(() => {})
+  }, [parsed, t])
+
+  const displayTitle = resolvedTitle || parsed?.title || null
+
+  useEffect(() => {
+    if (!open || !search.trim()) { setResults([]); return }
+    setLoading(true)
+    const timer = setTimeout(() => {
+      fetch(`/api/notes?search=${encodeURIComponent(search.trim())}&limit=10`)
+        .then(r => r.json())
+        .then(data => setResults(data.data ?? []))
+        .catch(() => setResults([]))
+        .finally(() => setLoading(false))
+    }, 250)
+    return () => clearTimeout(timer)
+  }, [open, search])
+
+  return (
+    <Popover open={open} onOpenChange={setOpen}>
+      <PopoverTrigger asChild>
+        <button
+          type="button"
+          className={cn(
+            'w-full min-h-[28px] rounded-md border border-transparent hover:border-border/60 px-2 text-left transition-colors flex items-center gap-1',
+            compact && 'text-[12px] py-0.5',
+            !compact && 'py-1.5',
+            className,
+          )}
+        >
+          {displayTitle ? (
+            <span
+              role="link"
+              onClick={(e) => { e.stopPropagation(); if (parsed) openNotePeek({ noteId: parsed.id }) }}
+              className="truncate text-brand-accent hover:underline cursor-pointer"
+            >
+              {displayTitle}
+            </span>
+          ) : parsed ? (
+            <span className="truncate text-muted-foreground text-[11px]">...</span>
+          ) : (
+            <span className="text-muted-foreground/50 text-[11px]">{t('structuredViews.relationEmpty') || 'Lier une note...'}</span>
+          )}
+        </button>
+      </PopoverTrigger>
+      <PopoverContent className="w-64 p-0" align="start">
+        <input
+          type="text"
+          value={search}
+          onChange={(e) => setSearch(e.target.value)}
+          placeholder={t('structuredViews.relationSearch') || 'Rechercher une note...'}
+          autoFocus
+          className="w-full border-b border-border/40 px-3 py-2 text-sm bg-transparent outline-none"
+        />
+        <div className="max-h-48 overflow-y-auto">
+          {loading && <div className="px-3 py-2 text-xs text-muted-foreground">...</div>}
+          {!loading && results.length === 0 && search.trim() && (
+            <div className="px-3 py-2 text-xs text-muted-foreground">{t('structuredViews.relationNoResults') || 'Aucune note trouvée'}</div>
+          )}
+          {results.map((note) => (
+            <button
+              key={note.id}
+              type="button"
+              onClick={() => {
+                onChange({ id: note.id, title: note.title || t('notes.untitled') })
+                setOpen(false)
+                setSearch('')
+              }}
+              className="w-full text-left px-3 py-1.5 text-sm hover:bg-muted transition-colors truncate"
+            >
+              {note.title || t('notes.untitled')}
+            </button>
+          ))}
+        </div>
+      </PopoverContent>
+    </Popover>
+  )
+}
diff --git a/memento-note/lib/structured-views/property-utils.ts b/memento-note/lib/structured-views/property-utils.ts
index f3ed18e..0b94a5c 100644
--- a/memento-note/lib/structured-views/property-utils.ts
+++ b/memento-note/lib/structured-views/property-utils.ts
@@ -5,6 +5,7 @@ import type {
   PropertyType,
   SchemaProperty,
 } from './types'
+import { PROPERTY_TYPES } from './types'
 
 export function parsePropertyOptions(raw: string | null | undefined): string[] {
   if (!raw) return []
@@ -31,6 +32,12 @@ export function serializePropertyValue(type: PropertyType, value: unknown): stri
     const arr = Array.isArray(value) ? value : []
     return JSON.stringify(arr.filter((v) => typeof v === 'string'))
   }
+  if (type === 'relation') {
+    if (typeof value === 'object' && value !== null) {
+      return JSON.stringify(value)
+    }
+    return JSON.stringify(String(value))
+  }
   return JSON.stringify(String(value))
 }
 
@@ -38,6 +45,7 @@ export function parseStoredPropertyValue(type: PropertyType, raw: string | null
   if (raw == null || raw === '') {
     if (type === 'checkbox') return false
     if (type === 'multiselect') return []
+    if (type === 'relation') return null
     return null
   }
   try {
@@ -45,6 +53,7 @@ export function parseStoredPropertyValue(type: PropertyType, raw: string | null
     if (type === 'checkbox') return Boolean(parsed)
     if (type === 'number') return typeof parsed === 'number' ? parsed : Number(parsed)
     if (type === 'multiselect') return Array.isArray(parsed) ? parsed : []
+    if (type === 'relation') return typeof parsed === 'object' ? parsed : { id: String(parsed), title: String(parsed) }
     return parsed
   } catch {
     return raw