diff --git a/galleries/examples/subplots_axes_and_figures/gridspec_nested.py b/galleries/examples/subplots_axes_and_figures/gridspec_nested.py
index 025bdb1185a7..789cc0ae6b5b 100644
--- a/galleries/examples/subplots_axes_and_figures/gridspec_nested.py
+++ b/galleries/examples/subplots_axes_and_figures/gridspec_nested.py
@@ -1,4 +1,6 @@
 """
+.. redirect-from:: /gallery/userdemo/demo_gridspec06
+
 ================
 Nested Gridspecs
 ================
diff --git a/galleries/examples/userdemo/README.txt b/galleries/examples/userdemo/README.txt
deleted file mode 100644
index 7be351dc70dd..000000000000
--- a/galleries/examples/userdemo/README.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-.. _userdemo:
-
-Userdemo
-========
diff --git a/galleries/examples/userdemo/demo_gridspec06.py b/galleries/examples/userdemo/demo_gridspec06.py
deleted file mode 100644
index c42224ce1e7b..000000000000
--- a/galleries/examples/userdemo/demo_gridspec06.py
+++ /dev/null
@@ -1,38 +0,0 @@
-r"""
-================
-Nested GridSpecs
-================
-
-This example demonstrates the use of nested `.GridSpec`\s.
-"""
-
-import matplotlib.pyplot as plt
-import numpy as np
-
-
-def squiggle_xy(a, b, c, d):
-    i = np.arange(0.0, 2*np.pi, 0.05)
-    return np.sin(i*a)*np.cos(i*b), np.sin(i*c)*np.cos(i*d)
-
-
-fig = plt.figure(figsize=(8, 8))
-outer_grid = fig.add_gridspec(4, 4, wspace=0, hspace=0)
-
-for a in range(4):
-    for b in range(4):
-        # gridspec inside gridspec
-        inner_grid = outer_grid[a, b].subgridspec(3, 3, wspace=0, hspace=0)
-        axs = inner_grid.subplots()  # Create all subplots for the inner grid.
-        for (c, d), ax in np.ndenumerate(axs):
-            ax.plot(*squiggle_xy(a + 1, b + 1, c + 1, d + 1))
-            ax.set(xticks=[], yticks=[])
-
-# show only the outside spines
-for ax in fig.get_axes():
-    ss = ax.get_subplotspec()
-    ax.spines.top.set_visible(ss.is_first_row())
-    ax.spines.bottom.set_visible(ss.is_last_row())
-    ax.spines.left.set_visible(ss.is_first_col())
-    ax.spines.right.set_visible(ss.is_last_col())
-
-plt.show()
diff --git a/galleries/users_explain/axes/legend_guide.py b/galleries/users_explain/axes/legend_guide.py
index 5da3ceafe387..ec0468fe172d 100644
--- a/galleries/users_explain/axes/legend_guide.py
+++ b/galleries/users_explain/axes/legend_guide.py
@@ -1,7 +1,7 @@
 """
 .. redirect-from:: /tutorials/intermediate/legend_guide
-.. redirect-from:: /galleries/examples/userdemo/simple_legend01
-.. redirect-from:: /galleries/examples/userdemo/simple_legend02
+.. redirect-from:: /gallery/userdemo/simple_legend01
+.. redirect-from:: /gallery/userdemo/simple_legend02
 
 .. _legend_guide:
 
diff --git a/pyproject.toml b/pyproject.toml
index 70b078a73d27..b980e512769a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -196,7 +196,6 @@ convention = "numpy"
 "galleries/examples/user_interfaces/mpl_with_glade3_sgskip.py" = ["E402"]
 "galleries/examples/user_interfaces/pylab_with_gtk3_sgskip.py" = ["E402"]
 "galleries/examples/user_interfaces/pylab_with_gtk4_sgskip.py" = ["E402"]
-"galleries/examples/userdemo/pgf_preamble_sgskip.py" = ["E402"]
 
 "lib/matplotlib/__init__.py" = ["F822"]
 "lib/matplotlib/_cm.py" = ["E202", "E203", "E302"]