No. The Kingdom was mostly in Mauritania with parts of it extending into Morocco in the North and Senegal in the South. I'm sure you know they defeated the ancient Ghana empire and some of them were Wolofs, right? That was before they went to Europe.
This is the Almoravid dynasty.
The Almohad dynasty.
They were mostly in Morocco. Most of their capital/major cities were in Morocco. "Mauritania" back in the day originally referred to the modern day Morocco. Yeah, they did extend to Senegal but they were mostly made up of Saharan Berbers like the Sanhaja, Masmuda and Tuaregs. There were some Muslim West Africans(from Ghana and other empires) that aided them but the majority were dark skinned Saharan Berbers.
Lastly, the Almoravids never beat the Ghana Empire. Thats a myth Eurocentric cacs made up as there is no proof of it. And they weren't Wolof(Ghana) but Sonnike.