diff --git a/src/KDGui/platform/linux/xcb/linux_xcb_platform_event_loop.cpp b/src/KDGui/platform/linux/xcb/linux_xcb_platform_event_loop.cpp
index 7d3bb30..fbfc227 100644
--- a/src/KDGui/platform/linux/xcb/linux_xcb_platform_event_loop.cpp
+++ b/src/KDGui/platform/linux/xcb/linux_xcb_platform_event_loop.cpp
@@ -114,8 +114,10 @@ void LinuxXcbPlatformEventLoop::processXcbEvents()
             const auto w = configureEvent->width;
             const auto h = configureEvent->height;
             auto window = m_platformIntegration->window(configureEvent->window);
-            SPDLOG_LOGGER_DEBUG(m_logger, "{}: Resize of window to {} x {}", xcbEvent->sequence, w, h);
-            window->handleResize(w, h);
+            if (window) {
+                SPDLOG_LOGGER_DEBUG(m_logger, "{}: Resize of window to {} x {}", xcbEvent->sequence, w, h);
+                window->handleResize(w, h);
+            }
             break;
         }
 
@@ -136,6 +138,8 @@ void LinuxXcbPlatformEventLoop::processXcbEvents()
         case XCB_BUTTON_PRESS: {
             const auto buttonEvent = reinterpret_cast<xcb_button_press_event_t *>(xcbEvent);
             auto window = m_platformIntegration->window(buttonEvent->event);
+            if (window == nullptr)
+                break;
             auto button = buttonEvent->detail;
 
             switch (button) {
@@ -217,6 +221,8 @@ void LinuxXcbPlatformEventLoop::processXcbEvents()
         case XCB_BUTTON_RELEASE: {
             const auto buttonEvent = reinterpret_cast<xcb_button_release_event_t *>(xcbEvent);
             auto window = m_platformIntegration->window(buttonEvent->event);
+            if (window == nullptr)
+                break;
             SPDLOG_LOGGER_DEBUG(m_logger,
                                 "Mouse release event for button {} at pos ({}, {})",
                                 buttonEvent->detail,
@@ -233,6 +239,8 @@ void LinuxXcbPlatformEventLoop::processXcbEvents()
         case XCB_MOTION_NOTIFY: {
             const auto mouseMoveEvent = reinterpret_cast<xcb_motion_notify_event_t *>(xcbEvent);
             auto window = m_platformIntegration->window(mouseMoveEvent->event);
+            if (window == nullptr)
+                break;
             SPDLOG_LOGGER_DEBUG(m_logger,
                                 "{}: Mouse move event for button {} at pos ({}, {})",
                                 xcbEvent->sequence,
diff --git a/src/KDGui/platform/linux/xcb/linux_xcb_platform_integration.cpp b/src/KDGui/platform/linux/xcb/linux_xcb_platform_integration.cpp
index b35c6f0..1995334 100644
--- a/src/KDGui/platform/linux/xcb/linux_xcb_platform_integration.cpp
+++ b/src/KDGui/platform/linux/xcb/linux_xcb_platform_integration.cpp
@@ -66,6 +66,14 @@ LinuxXkbKeyboard *LinuxXcbPlatformIntegration::keyboard()
     return m_keyboard.get();
 }
 
+LinuxXcbPlatformWindow *LinuxXcbPlatformIntegration::window(xcb_window_t xcbWindow) const
+{
+    auto it = m_windows.find(xcbWindow);
+    if (it == m_windows.end())
+        return nullptr;
+    return it->second;
+}
+
 LinuxXcbPlatformEventLoop *LinuxXcbPlatformIntegration::createPlatformEventLoopImpl()
 {
     // We ensure that the logger has been created here rather than in the ctor so that
diff --git a/src/KDGui/platform/linux/xcb/linux_xcb_platform_integration.h b/src/KDGui/platform/linux/xcb/linux_xcb_platform_integration.h
index eec6bf2..0c5fe3e 100644
--- a/src/KDGui/platform/linux/xcb/linux_xcb_platform_integration.h
+++ b/src/KDGui/platform/linux/xcb/linux_xcb_platform_integration.h
@@ -46,7 +46,7 @@ class KDGUI_API LinuxXcbPlatformIntegration : public AbstractGuiPlatformIntegrat
         m_windows.insert({ xcbWindow, window });
     }
     void unregisterWindowForEvents(xcb_window_t xcbWindow) { m_windows.erase(xcbWindow); }
-    LinuxXcbPlatformWindow *window(xcb_window_t xcbWindow) { return m_windows.at(xcbWindow); }
+    LinuxXcbPlatformWindow *window(xcb_window_t xcbWindow) const;
 
 private:
     LinuxXcbPlatformEventLoop *createPlatformEventLoopImpl() override;
diff --git a/src/KDGui/platform/win32/win32_platform_window.cpp b/src/KDGui/platform/win32/win32_platform_window.cpp
index 04feab9..acd7ab6 100644
--- a/src/KDGui/platform/win32/win32_platform_window.cpp
+++ b/src/KDGui/platform/win32/win32_platform_window.cpp
@@ -169,7 +169,6 @@ Win32PlatformWindow::Win32PlatformWindow(Win32GuiPlatformIntegration *platformIn
 
 Win32PlatformWindow::~Win32PlatformWindow()
 {
-    destroy();
     delete m_rawInputData;
     m_rawInputData = nullptr;
     m_rawInputDataSize = 0;
diff --git a/src/KDGui/window.cpp b/src/KDGui/window.cpp
index 0a56afc..0c4569f 100644
--- a/src/KDGui/window.cpp
+++ b/src/KDGui/window.cpp
@@ -33,7 +33,11 @@ Window::Window()
     rawMouseInputEnabled.valueChanged().connect(&Window::onRawMouseInputEnabledChanged, this);
 }
 
-Window::~Window() = default;
+Window::~Window()
+{
+    if (m_platformWindow)
+        destroy();
+}
 
 Window::Window(Window &&other) noexcept = default;
 Window &Window::operator=(Window &&other) noexcept = default;
@@ -80,6 +84,7 @@ void Window::destroy()
         return;
 
     m_platformWindow->destroy();
+    m_platformWindow = nullptr;
 }
 
 void Window::registerEventReceiver(Object *receiver)
diff --git a/tests/auto/gui/window/tst_window.cpp b/tests/auto/gui/window/tst_window.cpp
index 5c7b19e..de23e58 100644
--- a/tests/auto/gui/window/tst_window.cpp
+++ b/tests/auto/gui/window/tst_window.cpp
@@ -80,4 +80,23 @@ TEST_CASE("Creation")
         REQUIRE(w->platformWindow()->type() == AbstractPlatformWindow::Type::Cocoa);
 #endif
     }
+
+    SUBCASE("doesn't crash if Window destroyed with pending platform events")
+    {
+        // GIVEN
+        GuiApplication app;
+        auto window = std::make_unique<Window>();
+        window->width = 512;
+        window->height = 512;
+        window->create();
+
+        REQUIRE(window->platformWindow() != nullptr);
+
+        // WHEN -> Trigger a resize (this should trigger platform events, at least it does for XCB)
+        window->width = 256;
+        window->height = 256;
+
+        // THEN -> Shouldn't crash if platform backend is trying to deliver resize events on app exit
+        // to window that is now destroyed
+    }
 }