Read the following paragraph and determine if the hypothesis is true:

Albert V of Saxe-Lauenburg (mid 1330s 1370) was the second son of Duke Albert IV of Saxe-Lauenburg and Beata of Schwerin (*?before 1341*), daughter of Gunzelin VI, Count of Schwerin. Albert succeeded his elder brother John III in 1356 as Duke of Saxe-Bergedorf-Molln, a branch duchy of Saxe-Lauenburg. He died without an heir and was succeeded by his younger brother Eric III.

Options: [I] Yes; [II] It's impossible to say; [III] No;
Hypothesis: Albert V's younger brother was named Eric III.
[I]