The Goose’s Paw symbolizes the three persons of the Trinity in the three branches that meet at a point creating another branch. They are three persons but one God. In this way the three branches leave from the common point in acute angles. Another less common presentation comprises three lines forming angles of 120 ° that join in the central point, Santa Eufemia.de Cozuelos.
San Eufemia de Cozuelos, Nuestra Señora de la Peña (Sepúlveda), Santa Cecilia de Aguilar de Campoo (Palencia), San Miguel de Fuentidueña (Segovia).
Read more in The stonemason’s signs in the Romanesque churches in Spain.