閆 (radical 169 門+3, 11 strokes, cangjie input 日弓一一一 (ANMMM), four-corner 77101, composition ⿵門三)
From the cursive script form of 閻. 闫 was adopted as the simplified form of 閻 in the second round of simplified Chinese characters.
From 閻. After the retraction of the second round of simplification in Mainland China, some people have continued to use 闫 as their surname, but others have changed it to 阎, separating the two variants of the same surname into two different surnames.