diff --git a/stubs/babel/babel/dates.pyi b/stubs/babel/babel/dates.pyi
index 733da4624..36a5b41a6 100644
--- a/stubs/babel/babel/dates.pyi
+++ b/stubs/babel/babel/dates.pyi
@@ -116,6 +116,8 @@ def get_date_format(format: _PredefinedTimeFormat = ..., locale: Locale | str |
 def get_datetime_format(format: _PredefinedTimeFormat = ..., locale: Locale | str | None = ...) -> DateTimePattern: ...
 def get_time_format(format: _PredefinedTimeFormat = ..., locale: Locale | str | None = ...) -> DateTimePattern: ...
 
+class ParseError(ValueError): ...
+
 # Basic Parsing
 def parse_date(string: str, locale: Locale | str | None = ..., format: _PredefinedTimeFormat = ...) -> date: ...
 def parse_time(string: str, locale: Locale | str | None = ..., format: _PredefinedTimeFormat = ...) -> time: ...
diff --git a/stubs/babel/babel/localedata.pyi b/stubs/babel/babel/localedata.pyi
index 18583226a..e2c1a63e2 100644
--- a/stubs/babel/babel/localedata.pyi
+++ b/stubs/babel/babel/localedata.pyi
@@ -16,10 +16,10 @@ class Alias:
 
 class LocaleDataDict(MutableMapping[Any, Any]):
     base: Mapping[str, Any]
-    def __init__(self, data: Mapping[str, Any], base: Mapping[str, Any] | None = ...) -> None: ...
+    def __init__(self, data: Mapping[str | int | None, Any], base: Mapping[str | int | None, Any] | None = ...) -> None: ...
     def __len__(self) -> int: ...
-    def __iter__(self) -> Iterator[str]: ...
-    def __getitem__(self, key: str) -> Any: ...
-    def __setitem__(self, key: str, value: Any) -> None: ...
-    def __delitem__(self, key: str) -> None: ...
+    def __iter__(self) -> Iterator[str | int | None]: ...
+    def __getitem__(self, key: str | int | None) -> Any: ...
+    def __setitem__(self, key: str | int | None, value: Any) -> None: ...
+    def __delitem__(self, key: str | int | None) -> None: ...
     def copy(self) -> LocaleDataDict: ...
diff --git a/stubs/babel/babel/numbers.pyi b/stubs/babel/babel/numbers.pyi
index eeb1eecd2..f8a60df52 100644
--- a/stubs/babel/babel/numbers.pyi
+++ b/stubs/babel/babel/numbers.pyi
@@ -33,11 +33,11 @@ def get_plus_sign_symbol(locale: Locale | str | None = ...) -> str: ...
 def get_minus_sign_symbol(locale: Locale | str | None = ...) -> str: ...
 def get_exponential_symbol(locale: Locale | str | None = ...) -> str: ...
 def get_group_symbol(locale: Locale | str | None = ...) -> str: ...
-def format_number(number: float | decimal.Decimal, locale: Locale | str | None = ...) -> str: ...
+def format_number(number: float | decimal.Decimal | str, locale: Locale | str | None = ...) -> str: ...
 def get_decimal_precision(number: decimal.Decimal) -> int: ...
 def get_decimal_quantum(precision: int | decimal.Decimal) -> decimal.Decimal: ...
 def format_decimal(
-    number: float | decimal.Decimal,
+    number: float | decimal.Decimal | str,
     format: str | None = ...,
     locale: Locale | str | None = ...,
     decimal_quantization: bool = ...,
@@ -50,7 +50,7 @@ def format_compact_decimal(
 class UnknownCurrencyFormatError(KeyError): ...
 
 def format_currency(
-    number: float | decimal.Decimal,
+    number: float | decimal.Decimal | str,
     currency: str,
     format: str | None = ...,
     locale: Locale | str | None = ...,
@@ -60,14 +60,17 @@ def format_currency(
     group_separator: bool = ...,
 ) -> str: ...
 def format_percent(
-    number: float | decimal.Decimal,
+    number: float | decimal.Decimal | str,
     format: str | None = ...,
     locale: Locale | str | None = ...,
     decimal_quantization: bool = ...,
     group_separator: bool = ...,
 ) -> str: ...
 def format_scientific(
-    number: float | decimal.Decimal, format: str | None = ..., locale: Locale | str | None = ..., decimal_quantization: bool = ...
+    number: float | decimal.Decimal | str,
+    format: str | None = ...,
+    locale: Locale | str | None = ...,
+    decimal_quantization: bool = ...,
 ) -> str: ...
 
 class NumberFormatError(ValueError):
diff --git a/stubs/babel/babel/support.pyi b/stubs/babel/babel/support.pyi
index 954ccca00..4bc972147 100644
--- a/stubs/babel/babel/support.pyi
+++ b/stubs/babel/babel/support.pyi
@@ -24,11 +24,11 @@ class Format:
         format: _PredefinedTimeFormat = ...,
         add_direction: bool = ...,
     ) -> str: ...
-    def number(self, number: float | Decimal) -> str: ...
-    def decimal(self, number: float | Decimal, format: str | None = ...) -> str: ...
-    def currency(self, number: float | Decimal, currency: str) -> str: ...
-    def percent(self, number: float | Decimal, format: str | None = ...) -> str: ...
-    def scientific(self, number: float | Decimal) -> str: ...
+    def number(self, number: float | Decimal | str) -> str: ...
+    def decimal(self, number: float | Decimal | str, format: str | None = ...) -> str: ...
+    def currency(self, number: float | Decimal | str, currency: str) -> str: ...
+    def percent(self, number: float | Decimal | str, format: str | None = ...) -> str: ...
+    def scientific(self, number: float | Decimal | str) -> str: ...
 
 class LazyProxy:
     def __init__(self, func, *args, **kwargs) -> None: ...