The King's Crown is a fairly simple quilt block using half square triangles, flying geese and squares set in a 2 by 2 square grid layout. There are several ways to use pieces in this block and as you can see at least 2 ways to select fabric.
As with so many quilt blocks, there are other blocks with the same name and blocks with multiple names. Below is another variation of the King's Crown which is known to me as Square Album Four Patch. You can find a calculator for this block at www.myquiltgenie.com.