Issue while applying where clause for parent table : Laravel 5.2

Below is the schema for tblagegroup

CREATE TABLE `tblagegroup` (
  `AgeGroupID` tinyint(3) UNSIGNED NOT NULL,
  `MinAge` int(11) NOT NULL,
  `MaxAge` int(11) NOT NULL
);

Below is the schema for tblcontentlibrary

CREATE TABLE `tblcontentlibrary` (
  `ContentLibraryID` int(11) NOT NULL,
  `AgeGroupID` tinyint(3) UNSIGNED NOT NULL
);

AgeGroupID is associated in both tables.

I am trying to get those records from tblcontentlibrary where MinAge >= 2 and MaxAge is <= 4

Below is what i tried.

\App\Models\ContentLibraryModel
::with('AgeGroup')
->where('MinAge', '>=', $years)
->where('MaxAge', '<=', $years)
->get();

I am getting below error.

Column not found: 1054 Unknown column 'MinAge' in 'where clause' (SQL: select * from tblcontentlibrary where MinAge >= 0 and MaxAge <= 0)

Am I missing anything?

via Chebli Mohamed