diff --git a/tests/bugs/gh_7186_test.py b/tests/bugs/gh_7186_test.py
new file mode 100644
index 00000000..0676010c
--- /dev/null
+++ b/tests/bugs/gh_7186_test.py
@@ -0,0 +1,107 @@
+#coding:utf-8
+
+"""
+ID:          issue-7186
+ISSUE:       https://github.com/FirebirdSQL/firebird/issues/7186
+TITLE:       Nbackup RDB$BACKUP_HISTORY cleanup
+DESCRIPTION:
+    Test verifies ability to specify command switches '-clean_history' and 'keep N rows' in NBACKUP utility.
+    Temporary user and role are created. System privilege USE_NBACKUP_UTILITY is granted to role, and role is granted to this user.
+    All executions of NBACKUP are performed as this temporary user.
+
+    Several levels of incremental backups are created WITHOUT this command switches (see 'NBK_COUNT_BEFORE_CLEANUP').
+    Then we run nbackup <NBK_COUNT_WITH_CLEANUP> times with switch '-clean_hist' and require to keep <NBK_KEEP_ROWS> rows.
+    Finally, we check content of RDB$BACKUP_HISTORY table: only NBK_KEEP_ROWS records must be selected from it.
+
+    ::: NB :::
+    It seems that currently firebird-driver does not support Services API parameters related to cleanup history
+    (isc_spb_nbk_clean_history; isc_spb_nbk_keep_days <int>	and isc_spb_nbk_keep_rows <int>).
+    Test will be modified after introducing this supoport.
+
+    Checked on 5.0.0.967 SS/CS, 4.0.3.2904 SS/CS -- all fine.
+"""
+
+import pytest
+from firebird.qa import *
+from typing import List
+from pathlib import Path
+import subprocess
+import re
+import locale
+import time
+
+
+db = db_factory()
+
+act = python_act('db')
+
+NBK_COUNT_BEFORE_CLEANUP = 6
+tmp_nbk_files_before_cleanup = temp_files( [ f'tmp_7186.nbk{i}' for i in range(NBK_COUNT_BEFORE_CLEANUP) ] )
+
+NBK_COUNT_WITH_CLEANUP = 4
+tmp_nbk_files_with_cleanup = temp_files( [ f'tmp_7186.nbk{i}' for i in range(NBK_COUNT_BEFORE_CLEANUP, NBK_COUNT_BEFORE_CLEANUP + NBK_COUNT_WITH_CLEANUP) ] )
+
+NBK_KEEP_ROWS = 3
+
+tmp_user = user_factory('db', name='gh_7186_user', password = '123')
+tmp_role = role_factory('db', name='gh_7186_role')
+
+expected_stdout = """
+"""
+
+@pytest.mark.version('>=4.0.3')
+def test_1(act: Action, tmp_nbk_files_before_cleanup: List[Path], tmp_nbk_files_with_cleanup: List[Path], tmp_user: User, tmp_role: Role, capsys):
+    init_sql = f"""
+        recreate table test(id int generated always as identity (start with 0));
+        grant insert,select on test to public;
+        alter role {tmp_role.name} set system privileges to USE_NBACKUP_UTILITY;
+        grant default {tmp_role.name} to user {tmp_user.name};
+        commit;
+    """
+    act.expected_stdout = ''
+    act.isql(switches=[], input = init_sql, combine_output=True)
+    assert act.clean_stdout == act.clean_expected_stdout
+    act.reset()
+
+    with act.db.connect() as con:
+        for i,tmp_nbk_i in enumerate(tmp_nbk_files_before_cleanup):
+            con.execute_immediate('insert into test default values')
+            con.commit()
+            act.expected_stderr = ''
+            act.nbackup(switches=['-user', tmp_user.name, '-pas', tmp_user.password, '-b', str(i), act.db.dsn, tmp_nbk_i], credentials = False, io_enc = locale.getpreferredencoding())
+            assert act.clean_stderr == act.clean_expected_stderr
+            act.reset()
+
+
+    # Now we try to cleanup history of nbackups, using only <N> ROWS:
+    # act.nbackup(switches=['-user', tmp_user.name, '-pas', tmp_user.password, '-b', str(i), act.db.dsn, tmp_nbk_i], combine_output = True, credentials = False, io_enc = locale.getpreferredencoding())
+    # nbackup -B 10 C:\temp\pytest-of-PashaZ\pytest-110\test_10\TEST.FDB C:\temp\pytest-of-PashaZ\pytest-110\test_10\tmp_7186.nbk10 -clean_hist -keep 3 row
+
+    for i,tmp_nbk_i in enumerate(tmp_nbk_files_with_cleanup):
+        act.expected_stderr = ''
+        act.nbackup(switches=['-user', tmp_user.name, '-pas', tmp_user.password, '-b', str(NBK_COUNT_BEFORE_CLEANUP + i), act.db.dsn, tmp_nbk_i, '-clean_hist', '-keep', str(NBK_KEEP_ROWS), 'row'], credentials = False, io_enc = locale.getpreferredencoding())
+        assert act.clean_stderr == act.clean_expected_stderr
+        act.reset()
+    
+    test_sql = """
+        set list on;
+        set count on;
+        select rdb$backup_id, rdb$backup_level
+        from rdb$backup_history
+        order by rdb$backup_id;
+    """
+    act.expected_stdout = f"""
+        RDB$BACKUP_ID                   {NBK_COUNT_BEFORE_CLEANUP + NBK_COUNT_WITH_CLEANUP - 2}
+        RDB$BACKUP_LEVEL                {NBK_COUNT_BEFORE_CLEANUP + NBK_COUNT_WITH_CLEANUP - 3}
+
+        RDB$BACKUP_ID                   {NBK_COUNT_BEFORE_CLEANUP + NBK_COUNT_WITH_CLEANUP - 1}
+        RDB$BACKUP_LEVEL                {NBK_COUNT_BEFORE_CLEANUP + NBK_COUNT_WITH_CLEANUP - 2}
+
+        RDB$BACKUP_ID                   {NBK_COUNT_BEFORE_CLEANUP + NBK_COUNT_WITH_CLEANUP - 0}
+        RDB$BACKUP_LEVEL                {NBK_COUNT_BEFORE_CLEANUP + NBK_COUNT_WITH_CLEANUP - 1}
+
+        Records affected: {NBK_KEEP_ROWS}
+    """
+    act.isql(switches=[], input = test_sql, combine_output=True)
+    assert act.clean_stdout == act.clean_expected_stdout
+    act.reset()