diff --git a/src/sql/kernel/qsqlerror.cpp b/src/sql/kernel/qsqlerror.cpp
index 7a1a91948c..478ca421d2 100644
--- a/src/sql/kernel/qsqlerror.cpp
+++ b/src/sql/kernel/qsqlerror.cpp
@@ -127,20 +127,6 @@ public:
     \since 5.10
 */
 
-#if QT_DEPRECATED_SINCE(5, 3)
-QSqlError::QSqlError(const QString& driverText, const QString& databaseText, ErrorType type,
-                    int number)
-{
-    d = new QSqlErrorPrivate;
-
-    d->driverError = driverText;
-    d->databaseError = databaseText;
-    d->errorType = type;
-    if (number != -1)
-        d->errorCode = QString::number(number);
-}
-#endif
-
 /*!
     Constructs an error containing the driver error text \a
     driverText, the database-specific error text \a databaseText, the
@@ -224,25 +210,6 @@ QString QSqlError::driverText() const
     return d->driverError;
 }
 
-/*!
-    \fn void QSqlError::setDriverText(const QString &driverText)
-    \obsolete
-
-    Sets the driver error text to the value of \a driverText.
-
-    Use QSqlError(const QString &driverText, const QString &databaseText,
-                  ErrorType type, int number) instead
-
-    \sa driverText(), setDatabaseText(), text()
-*/
-
-#if QT_DEPRECATED_SINCE(5, 1)
-void QSqlError::setDriverText(const QString& driverText)
-{
-    d->driverError = driverText;
-}
-#endif
-
 /*!
     Returns the text of the error as reported by the database. This
     may contain database-specific descriptions; it may be empty.
@@ -255,25 +222,6 @@ QString QSqlError::databaseText() const
     return d->databaseError;
 }
 
-/*!
-    \fn void QSqlError::setDatabaseText(const QString &databaseText)
-    \obsolete
-
-    Sets the database error text to the value of \a databaseText.
-
-    Use QSqlError(const QString &driverText, const QString &databaseText,
-                  ErrorType type, int number) instead
-
-    \sa databaseText(), setDriverText(), text()
-*/
-
-#if QT_DEPRECATED_SINCE(5, 1)
-void QSqlError::setDatabaseText(const QString& databaseText)
-{
-    d->databaseError = databaseText;
-}
-#endif
-
 /*!
     Returns the error type, or -1 if the type cannot be determined.
 */
@@ -283,68 +231,6 @@ QSqlError::ErrorType QSqlError::type() const
     return d->errorType;
 }
 
-/*!
-    \fn void QSqlError::setType(ErrorType type)
-    \obsolete
-
-    Sets the error type to the value of \a type.
-
-    Use QSqlError(const QString &driverText, const QString &databaseText,
-                  ErrorType type, int number) instead
-
-    \sa type()
-*/
-
-#if QT_DEPRECATED_SINCE(5, 1)
-void QSqlError::setType(ErrorType type)
-{
-    d->errorType = type;
-}
-#endif
-
-/*!
-    \fn int QSqlError::number() const
-    \obsolete
-
-    Returns the database-specific error number, or -1 if it cannot be
-    determined.
-
-    Returns 0 if the error code is not an integer.
-
-    \warning Some databases use alphanumeric error codes, which makes
-             number() unreliable if such a database is used.
-
-    Use nativeErrorCode() instead
-
-    \sa nativeErrorCode()
-*/
-
-#if QT_DEPRECATED_SINCE(5, 3)
-int QSqlError::number() const
-{
-    return d->errorCode.isEmpty() ? -1 : d->errorCode.toInt();
-}
-#endif
-
-/*!
-    \fn void QSqlError::setNumber(int number)
-    \obsolete
-
-    Sets the database-specific error number to \a number.
-
-    Use QSqlError(const QString &driverText, const QString &databaseText,
-                  ErrorType type, int number) instead
-
-    \sa number()
-*/
-
-#if QT_DEPRECATED_SINCE(5, 1)
-void QSqlError::setNumber(int number)
-{
-    d->errorCode = QString::number(number);
-}
-#endif
-
 /*!
     Returns the database-specific error code, or an empty string if
     it cannot be determined.
diff --git a/src/sql/kernel/qsqlerror.h b/src/sql/kernel/qsqlerror.h
index 7dfb6eb9ec..285ea88ee2 100644
--- a/src/sql/kernel/qsqlerror.h
+++ b/src/sql/kernel/qsqlerror.h
@@ -57,10 +57,6 @@ public:
         TransactionError,
         UnknownError
     };
-#if QT_DEPRECATED_SINCE(5, 3)
-    QT_DEPRECATED QSqlError(const QString &driverText, const QString &databaseText,
-                            ErrorType type, int number);
-#endif
     QSqlError(const QString &driverText = QString(),
               const QString &databaseText = QString(),
               ErrorType type = NoError,
@@ -79,20 +75,10 @@ public:
     QString driverText() const;
     QString databaseText() const;
     ErrorType type() const;
-#if QT_DEPRECATED_SINCE(5, 3)
-    QT_DEPRECATED int number() const;
-#endif
     QString nativeErrorCode() const;
     QString text() const;
     bool isValid() const;
 
-#if QT_DEPRECATED_SINCE(5, 1)
-    QT_DEPRECATED void setDriverText(const QString &driverText);
-    QT_DEPRECATED void setDatabaseText(const QString &databaseText);
-    QT_DEPRECATED void setType(ErrorType type);
-    QT_DEPRECATED void setNumber(int number);
-#endif
-
 private:
     // ### Qt6: Keep the pointer and remove the rest.
     QString unused1;
diff --git a/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp b/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
index 871ac24be4..db64e5aa47 100644
--- a/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
+++ b/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
@@ -42,9 +42,6 @@ public:
     virtual ~tst_QSqlError();
 
 private slots:
-#if QT_DEPRECATED_SINCE(5, 1)
-    void getSetCheck();
-#endif
     void construction();
     void moveOperator();
     void operators();
@@ -59,55 +56,12 @@ tst_QSqlError::~tst_QSqlError()
 {
 }
 
-#if QT_DEPRECATED_SINCE(5, 1)
-// Testing get/set functions
-void tst_QSqlError::getSetCheck()
-{
-    QSqlError obj1;
-    // ErrorType QSqlError::type()
-    // void QSqlError::setType(ErrorType)
-    obj1.setType(QSqlError::ErrorType(QSqlError::NoError));
-    QCOMPARE(QSqlError::ErrorType(QSqlError::NoError), obj1.type());
-    obj1.setType(QSqlError::ErrorType(QSqlError::ConnectionError));
-    QCOMPARE(QSqlError::ErrorType(QSqlError::ConnectionError), obj1.type());
-    obj1.setType(QSqlError::ErrorType(QSqlError::StatementError));
-    QCOMPARE(QSqlError::ErrorType(QSqlError::StatementError), obj1.type());
-    obj1.setType(QSqlError::ErrorType(QSqlError::TransactionError));
-    QCOMPARE(QSqlError::ErrorType(QSqlError::TransactionError), obj1.type());
-    obj1.setType(QSqlError::ErrorType(QSqlError::UnknownError));
-    QCOMPARE(QSqlError::ErrorType(QSqlError::UnknownError), obj1.type());
-
-    // int QSqlError::number()
-    // void QSqlError::setNumber(int)
-    obj1.setNumber(0);
-    QCOMPARE(0, obj1.number());
-    obj1.setNumber(INT_MIN);
-    QCOMPARE(INT_MIN, obj1.number());
-    obj1.setNumber(INT_MAX);
-    QCOMPARE(INT_MAX, obj1.number());
-}
-#endif
-
 void tst_QSqlError::construction()
 {
-#if QT_DEPRECATED_SINCE(5, 3)
-   {
-       QSqlError obj1("drivertext", "databasetext", QSqlError::UnknownError, 123);
-       QCOMPARE(obj1.driverText(), QString("drivertext"));
-       QCOMPARE(obj1.databaseText(), QString("databasetext"));
-       QCOMPARE(obj1.type(), QSqlError::UnknownError);
-       QCOMPARE(obj1.number(), 123);
-       QCOMPARE(obj1.nativeErrorCode(), QStringLiteral("123"));
-       QVERIFY(obj1.isValid());
-   }
-#endif
    QSqlError obj1("drivertext", "databasetext", QSqlError::UnknownError, QStringLiteral("123"));
    QCOMPARE(obj1.driverText(), QString("drivertext"));
    QCOMPARE(obj1.databaseText(), QString("databasetext"));
    QCOMPARE(obj1.type(), QSqlError::UnknownError);
-#if QT_DEPRECATED_SINCE(5, 3)
-   QCOMPARE(obj1.number(), 123);
-#endif
    QCOMPARE(obj1.nativeErrorCode(), QStringLiteral("123"));
    QVERIFY(obj1.isValid());
 
@@ -115,9 +69,6 @@ void tst_QSqlError::construction()
    QCOMPARE(obj2.driverText(), obj1.driverText());
    QCOMPARE(obj2.databaseText(), obj1.databaseText());
    QCOMPARE(obj2.type(), obj1.type());
-#if QT_DEPRECATED_SINCE(5, 3)
-   QCOMPARE(obj2.number(), obj1.number());
-#endif
    QCOMPARE(obj2.nativeErrorCode(), obj1.nativeErrorCode());
    QVERIFY(obj2.isValid());
 
@@ -125,9 +76,6 @@ void tst_QSqlError::construction()
    QCOMPARE(obj3.driverText(), obj2.driverText());
    QCOMPARE(obj3.databaseText(), obj2.databaseText());
    QCOMPARE(obj3.type(), obj2.type());
-#if QT_DEPRECATED_SINCE(5, 3)
-   QCOMPARE(obj3.number(), obj2.number());
-#endif
    QCOMPARE(obj3.nativeErrorCode(), obj2.nativeErrorCode());
    QVERIFY(obj3.isValid());
 
@@ -137,9 +85,6 @@ void tst_QSqlError::construction()
    QCOMPARE(obj4.databaseText(), QString());
    QCOMPARE(obj4.text(), QString());
    QCOMPARE(obj4.type(), QSqlError::NoError);
-#if QT_DEPRECATED_SINCE(5, 3)
-   QCOMPARE(obj4.number(), -1);
-#endif
    QCOMPARE(obj4.nativeErrorCode(), QString());
 
    QSqlError obj5(QStringLiteral("drivertext"), QStringLiteral("databasetext"),
@@ -147,9 +92,6 @@ void tst_QSqlError::construction()
    QCOMPARE(obj5.driverText(), QString("drivertext"));
    QCOMPARE(obj5.databaseText(), QString("databasetext"));
    QCOMPARE(obj5.type(), QSqlError::UnknownError);
-#if QT_DEPRECATED_SINCE(5, 3)
-   QCOMPARE(obj5.number(), 123);
-#endif
    QCOMPARE(obj5.nativeErrorCode(), QStringLiteral("123"));
    QVERIFY(obj5.isValid());
 
@@ -158,25 +100,9 @@ void tst_QSqlError::construction()
    QCOMPARE(obj6.driverText(), QString("drivertext"));
    QCOMPARE(obj6.databaseText(), QString("databasetext"));
    QCOMPARE(obj6.type(), QSqlError::UnknownError);
-#if QT_DEPRECATED_SINCE(5, 3)
-   QCOMPARE(obj6.number(), 0);
-#endif
    QCOMPARE(obj6.nativeErrorCode(), QStringLiteral("Err123"));
    QVERIFY(obj6.isValid());
 
-#if QT_DEPRECATED_SINCE(5, 3)
-   {
-        // Default constructed object as constructed before Qt 5.3
-       QSqlError obj7(QString(), QString(), QSqlError::NoError, -1);
-       QVERIFY(!obj7.isValid());
-       QCOMPARE(obj7.driverText(), QString());
-       QCOMPARE(obj7.databaseText(), QString());
-       QCOMPARE(obj7.type(), QSqlError::NoError);
-       QCOMPARE(obj7.number(), -1);
-       QCOMPARE(obj7.nativeErrorCode(), QString());
-   }
-#endif
-
    // Default constructed object
    QSqlError obj7;
    QVERIFY(!obj7.isValid());
@@ -190,9 +116,6 @@ void tst_QSqlError::construction()
    QCOMPARE(obj8.driverText(), obj2.driverText());
    QCOMPARE(obj8.databaseText(), obj2.databaseText());
    QCOMPARE(obj8.type(), obj2.type());
-#if QT_DEPRECATED_SINCE(5, 3)
-   QCOMPARE(obj8.number(), obj2.number());
-#endif
    QCOMPARE(obj8.nativeErrorCode(), obj2.nativeErrorCode());
    QVERIFY(obj8.isValid());
 }
@@ -204,9 +127,6 @@ void tst_QSqlError::moveOperator()
    QCOMPARE(obj2.driverText(), QString("drivertext"));
    QCOMPARE(obj2.databaseText(), QString("databasetext"));
    QCOMPARE(obj2.type(), QSqlError::UnknownError);
-#if QT_DEPRECATED_SINCE(5, 3)
-   QCOMPARE(obj2.number(), 123);
-#endif
    QCOMPARE(obj2.nativeErrorCode(), QStringLiteral("123"));
    QVERIFY(obj2.isValid());
 }