Final answer:
The reference texts do not mention a specific event of Philip arriving with supply ships in April 1191. Instead, they provide details about Philip II of Spain's armada in 1588, which consisted of 137 ships.
Step-by-step explanation:
The question 'How many supply ships did Philip arrive with in April 1191?' seems to refer to a historical event related to naval expeditions or warfare, but the provided reference texts do not contain specific information regarding Philip's arrival with supply ships in April 1191. However, there is ample information about the Spanish Armada organized by Philip II of Spain in 1588, which mentions that his fleet was composed of 137 ships in its failed attempt to invade England.
The confusion might arise from the mix-up of dates and the fact that 'Philip' could refer to different historical figures. In this case, since the reference texts speak of Philip II of Spain, it's important to clarify that he organized an armada in 1588 against England, and it consisted of 137 ships, not in April 1191.