Renaissance stitch is also known as Queen stitch and is a variation on Roumanian stitch which creates a beautiful regular pattern.

This hand embroidery stitch produces a series of diamond shapes that can be arranged in patterns or worked solidly to produce a filling.
Work on even weave fabric. It is ideal worked with a thread that has a firm twist to it.

As can be seen in the illustrations first make a straight stitch and bring your needle out of the fabric near the center of the stitch and make a small stitch to tie it down.

Bring your needle out at the top of the stitch and make the second vertical stitch.
Bring the needle out near the center of the stitch.
Tie this down with a small stitch also.