Rabbi Solomon Shapira - Research Note

In this public chart: https://jewsoffrankfurt.com/family-trees/test/shapiro-spiraspeyer-r... R' Shlomo ben Nathan is given the son: Menachem Mendel Salamon Frankfurther Spiro This son does not appear in the Jacobi's Shapiro tree and furthermore the chronology is out of whack. There is no known direct ben achar ben connection between Menachem Mendel Salamon Frankfurther Spiro and the Shapiro line of Rabbi Samuel Zalman Shapira, [1st Shapira - of Speyer] If someone has source evidence of such a connection please post the reference here.